Which features form along all types of plate boundaries?
faults
rift valleys
mountains
ocean ridges
According to the research, the correct options are faults and mountains. These are features form along all types of plate boundaries.
What are plate boundaries?They are the contact areas of the lithosphere between plates, we call them boundaries or edges, where new oceanic crust is formed and in which the plates separate, there are three plate boundaries which are:
ConvergentDivergentTransform plateIn this sense, since they are areas of great geological activity, they have a varied topography since tensional forces are produced that cause their movement that forms mountains and fault blocks.
Therefore, we can conclude that according to the research, the correct options are faults and mountains. These are features form along all types of plate boundaries.
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Answer:
A
Explanation:
1. This is the process where fossil fuels, forests, or other carbon-containing substances are burned, adding more carbon dioxide to the air. 2. A reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. Example: 1. Burning coal in a factory, cars burning gasoline, a forest fire.
Combustion is the process where fossil fuels, forests, or other carbon-containing substances are burned, adding more carbon dioxide to the air.
Combustion is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.
What is combustion?Combustion is a type of chemical reaction that occurs between fuel and oxygen leading to the production or generation of light and heat as a form of energy.
Examples of combustion reactions include the following:
The reaction between butane and oxygen leading to the production of water and carbondioxide.The reaction between methanol and oxygen to yield carbondioxide and water with energy.The reaction between propane and oxygen to yield carbondioxide and water with energy.The reaction between ethane and oxygen to yield carbondioxide and water with energy.Therefore, the question is a correct definition of a type of reaction called the combustion reaction.
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Can someone help (significant figures)
Answer:
1. 34.25
2.716
3.0.02181
4.1,323.194921978313 round use calculator
5.9.89
6.90 or 91
7.0.0269
Explanation:
Round if you can
when 1.85 g of na2co3•nh2o reacts with an excess of acid 0.457 g of carbon dioxide is formed. what is the value of n? round to the nearest whole number.
Value of n is NaCO3: 0.103/0.07= 1.47 and
h2o: 0.07/0.07= 1.
What is a mole?Mole, also spelled mol, in chemistry, standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles.
The mole designates an extremely the large number of units, 6.02214076 × . The mole was previously defined as number of atoms determined experimentally to be found in 12 grams of carbon-12.
The number of units in a mole also bears name Avogadro’s number, or Avogadro’s constant,
The number of atoms or the other particles in a mole is the same for all substances. The mole is related to mass of an element in the following way: one mole of carbon-12 atoms has 6.02214076 × atoms and a mass of 12 grams.
In comparison, one mole of oxygen consists, by definition, of same number of atoms as carbon-12, but it has a mass of 15.999 grams. Oxygen, therefore, has greater mass than carbon. This reasoning also can be applied to the molecular or formula weights.
The mass of anhydrous NaCO3 representing CO2 production is calculated:
m NaCO3 = 0.457*(106 NaCO3/ 44g co2)= 1.10g
Mass of water is calculated:
m h2o =1.85g-0.457= 1.393g
Moles of each component are calculated:
n NaCO3= 1.10/106 = 0.103 mol
n h2o = 1.393/18 = 0.07 mol
They are divided by smallest:
NaCO3: 0.103/0.07= 1.47
h2o: 0.07/0.07= 1
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Student wants to try to convince your parents to stop serving piece for dinner she lays an argument peas are high in fructose which is a type of sugar which test could she use to provide scientific evidence to support her argument that Peas are high in fructose
Benedict's test should be done to prove it.
Glucose is the main sugar which is mainly found in our blood. it is present in carbohydrate products. People with fructose intolerance should avoid peas because it contain a lot of fructose
Benedict's test is a test where chemicals are used to check the presence of sugar in a particular substance. The sugar that is present in the substance will react with the reducing sugar present in the substance on heating. the positive result is shown by the colour change from clear blue to brick red precipitate.
Pea contains a lot of fructose and it can be proved by doing benedict test.
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A material with a (n) __________specific heat can absorb a great deal of thermal energy without a great change in temperature
A material with a high specific heat can absorb a large amount of thermal energy while maintaining a constant temperature.
What is specific heat capacity?
The amount of energy required to raise the temperature of 1 kg of mass of a substance is defined as its specific heat capacity.
It is given mathematically as:
C = [tex]\frac{Q}{m}[/tex]ΔT
where
Q denotes the amount of energy supplied.
m denotes the substance's mass.
ΔT denotes the change in temperature of the substance.
The equation can be rewritten as follows:
ΔT = [tex]\frac{Q}{mC}[/tex]
As a result, we can see that a substance's temperature rise is inversely proportional to its specific heat capacity.
As a result, a material with a high specific heat can absorb a large amount of thermal energy without significantly changing its temperature.
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Two scientists were interested in discovering the effect of caffeine on heart rate. Identify the following:
Independent Variable :
Dependent Variable :
Constant:
Control:
Discovering the effect of caffeine on heart rate. The Independent Variable is caffeine, dependent Variable is heart beat, Control is group given no caffeine and constant is same amount of caffeine.
What is Independent variable?Independent variable is defined as varible which is changed by the experimenter.
What is Dependent Variable?Dependent variable is defined as those variable which depends on the independent variable.
What is Control group?It is defined as that group which do not receive experimental treatment.
What is Constant Variable?It is that variable which is kept unchanged for all types of groups in the experiment.
Thus, we concluded that the the Independent Variable is caffeine, dependent Variable is heart beat, Control is group given no caffeine and constant is same amount of caffeine.
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Calculate the maximum wavelength of light capable of dissociating the cl–f bond in one molecule of chlorine monofluoride if the bond energy, or bond dissociation energy, is 251 kj/mol.
According to bond energy, the maximum wavelength of light is 475 nanometers.
We need to know about bond energy to solve this problem. Bond energy is the energy needed to bond other atoms in the molecule. To determine the energy in one molecule of chlorine monofluoride, we can use this formula:
E = BE / Na
where E is the energy of photon, BE is bond energy and Na is Avogadro's number (6.02 x 10²³ atoms/mol)
Now, we can calculate the shortest wavelength by using Einstein's equation for photon energy:
E = h . c / λ
where h is Planck constant (6.6 x 10¯³⁴ J.s), c is the speed of light (3 x 10⁸ m/s) and λ is the wavelength.
From the question above, we know that
BE = 251 kJ/mol = 251 x 10³ J/mol
By substituting the given parameters, we can calculate the maximum wavelength
E = BE / Na
h . c / λ = 251 x 10³ / 6.02 x 10²³
6.6 x 10¯³⁴ . 3 x 10⁸ / λ = 251 x 10³ / 6.02 x 10²³
λ = 4.75 x 10¯⁷ m
λ = 475 nm
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Nitrogen (n2) is made up of 99.632% 14n and 0.368% 15n. the atomic mass of 14n is 14.003 amu. the atomic mass of 15n is 15.000 amu. what is the average atomic mass of nitrogen? 1.40 amu 1.40 lowercase a m u 14.007 amu 14.007 lowercase a m u 15.00 amu 15.00 lowercase a m u 155.00 amu
The average atomic mass of nitrogen is 14.003 amu.
Nitrogen exists in the form of two isotopes 14N and 15N.
In case an element exists in more than one type of isotope, then its average atomic mass can be calculated using the following formula
Average Atomic Mass = (Percentage abundance of isotope 1) x (Mass of isotope 1) + (Percentage abundance of isotope 2) x (Mass of isotope 2)/100
We are given that
Mass of isotope 1 = 14 amu
%age abundance of isotope 1 = 99.632 %
Mass of isotope 2 = 15 amu
%age abundance of isotope 2 = 0.368 %
Putting the above values in the equation
Average Atomic Mass = (99.632) x 14 + (0.368) x 15/100
Average atomic mass = 14.003 amu
Hence, the average atomic mass of nitrogen is 14.003 amu.
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Answer: It is 14.007 did the test
Explanation:
HELP PLEASE 30 POINTS.
Answer: a c 31 45 65 nitrogen
Explanation:
List the three variables in the density equation, and explain what each variable represents. I'll give brainliest for whoever answers first
The three variables in the density equation are the mass of the substance, the volume of the substance, and the density of the substance.
A variable is a characteristic that can be measured (such as mass, acceleration, volume, height, etc.) and that can take on different values.
An experiment typically has three types of variables:
The variable that is altered by the scientist is the independent variable.The variable that changes to a modification in the independent variable is the dependent variable. When the independent variable is altered, the dependent variable changes.The variable that remains constant is the controlled variable.Now, in density equation i,e,. Density = Mass/Volume.
The volume of the substance is the independent variable, while its mass is the dependent variable, because as the volume of the substance increases, so does its mass. As a result, mass depends on volume.
Density, on the other hand, is the controllable variable because its mass-to-volume ratio remains constant for any particular substance.
Thus, in the density equation, mass is the dependent variable, volume is the independent variable and density is the controlled variable.
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The density of water is? 9810 n/m^3 1000 slug/m^3 1.94 slug/ft^3 62.4 lb/ft^3
The density of water is 1.94 [tex]slug/ft^3[/tex] if 997 kg/m^3 is rounded to 1000.
What is Density of liquids?The density of a liquid is distinct from that of a solid.
A liquid's density serves as a gauge for its relative weight in relation to the quantity being evaluated. The liquid that weighs heavier is more dense if you weigh or measure the same volume of two different liquids.
It will float on the water if you add a liquid that is less dense than water to the surface of it. The surface of the water will sink if a substance is added that has a density greater than water.
Some examples are:
Liquid Temperature Density
Alcohol, methyl 25 786.5
Alcohol, propyl 25 800
Ammonia (aqua) 25 823.5
Aniline 25 1019
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liquid disilicon hexachloride reacts with water to form solid silicon dioxide, hydrogen chloride gas, and hydrogen gas. be sure to include the state of each reactant and product in the equation.
The liquid disilicon hexachloride reacts with water to form solid silicon dioxide, hydrogen chloride gas and hydrogen gas are
[tex]Si{2}Cl{6} (l) + 4H{2}O (l) ------ > 2SiO{2} (s) + 6HCl (g) + H{2} (g)[/tex]
When liquid disilicon hexachloride reacts with water to form solid silicon dioxide , hydrogen chloride gas and hydrogen gas , the following chemical equation is:
[tex]Si{2}Cl{6} (l) + H{2}O (l) ------ > SiO{2} (s) + HCl (g) + H{2} (g)[/tex]
now , we have to balance the eqaution,
Reactants product
Si 2 1
Cl 6 1
H 2 3
O 1 2
Multiply 4 with [tex]H{2}O[/tex] 2 with [tex]SiO{2}[/tex] and 6 with HCL, we get
[tex]Si{2}Cl{6} (l) + 4H{2}O (l) ------ > 2SiO{2} (s) + 6HCl (g) + H{2} (g)[/tex]
now ,
Reactant Product
Si 2 2
Cl 6 6
H 8 8
O 4 4
Thus, we get the desire equtions.
The liquid disilicon hexachloride reacts with water to form solid silicon dioxide, hydrogen chloride gas and hydrogen gas are
[tex]Si{2}Cl{6} (l) + 4H{2}O (l) ------ > 2SiO{2} (s) + 6HCl (g) + H{2} (g)[/tex]
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why ammonia is highly soluble in water?
Answer:
yes
Explanation:
please take to 8 glasses of water everyday
what is the naming for this?
how are elements above and below each other similar on the periodic table both physically and chemically?
Elements below and above each other belongs to same group.
According to the Modern Periodic Law, the elements in the periodic table are organised in that order. It claims that the atomic numbers of the elements are periodic functions of their physical and chemical qualities. The quantity of valence electrons in an atom determines its physical and chemical properties.The number of electrons in an element's valence shell, which is its outermost shell, is also indicated by the element's group number. The great majority of the physical properties, chemical properties, and reactivities of the elements are caused by these valence electrons.The group's elements share a number of chemical characteristics. This is due to the fact that both of their atoms' highest occupied energy levels have an equal number of electrons.For example, Li, NA, K, and Cs all have one valence electron. They share characteristics as a result.Learn more about periodic table here:
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Which of the following describes the length of a football field using the metric system?
Answer:
91.44 meters
Explanation:
There are no choices listed but an American pro football field is 100 yards long, which is 91.44 meters. Rounded to the nearest whole number that would be 91 meters.
A gas mixture being used to simulate the atmosphere of another planet at 23°c consists of 337 mg of methane, 148 mg of argon, and 210 mg of nitrogen. The partial pressure of nitrogen at 296 k is 19. 0 kpa. Calculate the total pressure of the mixture.
The total pressure of the mixture is 65.5 kPa.
According to Dalton's Law of Partial Pressure,
The partial pressure of gas = Mole fraction of gas × Total pressure
Total Pressure = Sum of all the gases partial pressures
The number of moles of methane is,
[tex]Moles \: of \: methane \: (16 g/mol) = 337 \: mg \times \frac{1 g}{1000 mg} \times \frac{ 1 mol}{16 g }[/tex]
= 0.021 mols
The moles of methane are 0.021 mols.
The number of moles of the argon,
[tex]Moles \: of \: argon (40 g/mol) = 148 \: mg \times \frac{ 1 g}{1000 mg } \times \frac{ 1 mol}{40 g} [/tex]
= 0.003 mols
The number of moles of argon is 0.003 mols.
The number of moles of nitrogen is,
[tex]Moles \: of \: nitrogen (28 g/mol) = 296 \: mg \times \frac{ 1 g}{1000 mg} \times \frac{ 1 mol/}{28 g}[/tex]
= 0.010 mols
The number of moles of nitrogen is 0.010 mols.
The total number of moles is,
= 0.021 + 0.003 + 0.010
= 0.034 mols
[tex]Mole \: fraction = \frac{ Moles \: of \: solute }{Total \: number \: of \: moles \: of \: soulte \: and \: solvent}[/tex]
[tex] = \frac{ 0.010 }{ 0.034} [/tex]
= 0.29
[tex]0.29 \: P _{total} = 19 \: kPa [/tex]
[tex] P _{total} = \frac{ 19 \: kPa }{0.29}[/tex]
= 65.5 kPa
Therefore, the total pressure of the mixture is 65.5 kPa.
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What would be most beneficial towards maintaining equilibrium probably be him in an eco system over a long period of time
The most beneficial towards maintaining the equilibrium in an ecosystem over a long period of time is to Diversity of organism.
A ecosystem maintains equilibrium by ensuring that each organism has resources and proper living condition fort the survival. four factors balance an ecosystem is water cycle, mineral cycle, energy flow and community dynamics. An ecosystem is place where plants and other organism interact with nonliving factor like weather.
Biodiversity or biological diversity , refers to all the variety of life that exist on earth. our planet is full of variety of living organisms .An ecosystem must have the greatest amount of producers, followed by primary consumers and having smallest no. of tertiary consumers.
hence,The most beneficial towards maintaining the equilibrium in an ecosystem over a long period of time is to Diversity of organism.
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On the table below, record your observations before and after the interactions and explain how mass was conserved. Describe the
changes in properties that prove a chemical reaction occurred. The first row is an example.
Observations Before
Observations After
How was mass
Proof of a Chemical
Interaction
Interaction
conserved?
Reaction
Example: Sugar +
Heat
The sugar is in tiny white
particles in a pile. Heat is
There is a solid, light brown The mass of the sugar is the
mass at the bottom of the pot. same in melted form as it is
There was not a chemical
not seen but is implied by the It has a mass of 100 grams.
reaction. Sugar did not
heat source. The pile of
in solid crystal form.
change composition. It only
sugar in the in pot has a mass
melted. Melting point is a
of 100 grams.
physical property, and this is
Steel Wool
a physical change.
Oxygen (Fire)
Egg
Heat
Water + Heat
Zinc + Hydrogen
Chloride
Sodium
Hydroxide •
Copper Sulfate?
Sugar Heat The sugar is in tiny white debris in a pile. warmth is not seen but is implied through the heat source. The pile of sugar in the pot has a mass of one hundred grams. there may be a stable, light brown mass at the lowest of the pot. It has a mass of 100 grams.
The mass of the sugar is the same in melted form as it is in strong crystal form. there has no longer a chemical response. Sugar did not trade composition. It most effectively melted. Melting point is a physical property, and this is bodily change. metallic Wool Oxygen fireplace The metal wool has a silky look and it is rolled up and has a mass of 6 grams.
The oxygen is not visible however it's far internal of an oxygen tank which has a mass of 1 gram. there's brown mustard color sand in a pile and has a mass of seven grams. The mass of the steel wool turned into blended with the mass of the oxygen tank and that became the same seven grams. there has been a chemical reaction. The metallic wool blended with the oxygen of the tank creates a brand new substance known as iron oxide. Egg heat The egg is vicinity on a flat floor and has its shell on. The egg has a mass of forty-five grams. the heat isn't visible however is implied with the aid of the heat supply of the kitchen. The egg is cooked and it's far cut loose from the shell. It has a mass of 45 grams the cooked egg 40 grams and the shell five grams.
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Why would an alkali metal in row 4 have a lower ionization energy than another alkali metal in row two?
An alkali metal in row 4 has lower ionization energy than another alkali metal in row two because of the greater size of its atom.
Alkali metals belong to the first column of the periodic table. They readily lose their one valence electron in the outermost shell to form ionic compounds with the nonmetals. Lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr) are alkali metals.
Ionization energy means the measure of the capability of a neutral atom to lose or donate its electrons for a chemical reaction. It is an endothermic process that requires energy to lose electrons. Ionization energy in a periodic table increases from left to right while decreases when we move from top to bottom. This is all because of the size of an atom.
The valence electron of an alkali metal in row 4 is far away from the nucleus of the atom and experiences the least forces of attraction. It can readily lose its valence electron in the outermost shell without the requirement of greater energy. Consequently, the alkali metal in row 4 has low ionization energy.
On the other hand, the alkali metal in row 2 has a smaller size. Its valence electron experiences a larger force of attraction from the nucleus. It, therefore, requires greater ionization energy to lose the electron. This means that the alkali metal in row 2 has high ionization energy.
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The reaction of cr2o3 with silicon metal at high temperatures will make chromium metal. True or false?.
The reaction of Cr₂o₃ with silicon metal at high temperatures will make chromium metal.
The given statement is true.
This reaction shows the formation of Cr when Cr₂O₃ reacts with silicon metal which signifies that chromium metal is formed
2 Cr₂O₃ (s) + 3Si (s) ------> 4Cr (l) + 3SiO₂ (s)
40.47 g of Si and 146.00 g of Cr₂O₃ will be used to produce 1.921 mol of Chromium.
This reaction would give liquid Chromium metal, which isn't the pure form of metal.
Pure Chromium metal can be obtained from the thermal reduction of Cr₂O₃ with aluminum.
Cr₂O₃(s) + 2Al(l) --> 2Cr(l) + Al₂O₃(s)
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help please! question in pic! 16 points!!
According to the Equilibrium Law, addition of products will shift the equilibrium towards left to the reactants and if the products are taken out the equilibrium will proceed in the forward direction to the right, to the products.
What is Equilibrium Law?Equilibrium Law refers to the state at which the rate of forward reaction is equal to the rate of backward reaction.
Equilibrium Law explains how a reaction in equilibrium will react to disturbances in the amount of products and reactants to counteract the disturbance and also how pH will impact equilibrium.
For example, if we add more product to a chemical reaction then to counteract the disturbance the equilibrium will shift towards left and more amount of reactants are formed. Similarly, if we add more amount of reactant to a chemical reaction then to compensate the change equilibrium will be shifted towards the right side and more amount of product is formed.
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Water is a polar molecule. Since oxygen has a slight negative charge and each hydrogen has a slight positive charge, this allows water molecules to.
Water is a polar molecule. Since oxygen has a slightly negative charge and each hydrogen has a slight positive charge, this allows water molecules to form a hydrogen bond.
What is a polar molecule?Water is a polar molecule. It is a very important solvent. It is also called a universal solvent. In water, Oxygen is a negative charge molecule and hydrogen is a positive charge.
Small negative charges on oxygen atoms in other water molecules are drawn to the small positive charges on hydrogen atoms in a water molecule. A hydrogen bond is a name given to this weak attraction. Different charges are drawn to one another.
Hydrogen bonds are very weak. The water molecules are charged molecules. The positively charged hydrogen attracts the negatively charged hydrogen atoms.
Therefore, Water is a polar molecule. Since oxygen has a slightly negative charge and each hydrogen has a slight positive charge, this allows water molecules to form a hydrogen bond.
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please help!! 10 points + brainlist!!
Answer:
concentrated=strong
dilute=weak
How many valence electrons does the ground-state electron configuration of nitrogen have?.
Answer:
5 valence electrons
Explanation:
a typical volume leaving the large intestine might be 180 ml. if the volume exiting the large intestine were 396 ml, then it would most likely indicate a case of
A typical volume leaving the large intestine might be 180 ml. It would most likely indicate a case of diarrhea, if the volume exiting the large intestine were 396 ml.
Large intestine is an organ which is larger in diameter than the small intestine. It is connected to small intestine at one end and to anus at the other end. The large intestine includes the colon, rectum and anus.
Diarrhea is a health/digestive issue. If it is not treated in time, it can be harmful and lead to serious health problems .An excessive loss of body fluids and weakened immune system may lead to the diarrhea.
Diarrhea and vomiting both can be associated with excessive loss of body fluids resulting in dehydration.
If the volume exiting the large intestine were 396 ml, then it would most likely indicate a case of diarrhea.
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complete the paragraph to describe binary systems
A binary star system is made of stars, two of which is brighter than the other.
Astronomers are able to detect the dimmer star because its gravity causes the bright star to wobble
Astronomers can also spot the dimmer star by observing a phenomenon called a(n) eclipsing binary. This happens when the dim star passes in front of the bright star.
When one astronomical body is obscured by another or when a body moves between it and the observer, this is known as an eclipse.Partial solar eclipses can be seen if you are in the moon's penumbra during a solar eclipse. Solar eclipses happen when the sun is partially blocked by the moon.When the sun, moon, and earth align, the earth covers the moon's view of the sun, causing lunar eclipses.To know more about eclipses visit : https://brainly.com/question/12075389
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Name and describe three parts that make up atoms
protons, neutron and electrons are the 3 constituents of atom
Atoms are too small to see by eyes without any equipment , so we have to use the models to visualize them.
The current model has a central nucleus which made up of protons and neutrons surrounded by the electrons in the shells
Protons and neutrons are almost of same size, but protons have a positive charge on them, and neutrons do not have any charge.
Electrons are much smaller than protons and neutrons and have a negative charge.
Protons and neutrons are made up of even smaller particles which is called quarks.
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letes Use this figure to answer the following questions. est 5 cm - 5 cm 5 cm 7 Apply What is the surface area-to-volume ratio of this cube? 150
Answer:
5cm is the answer because 5-5 is o and the one 5 is remaining so 5 is the answer.