298.8 miles/hour is the penguin going in miles per hour.
What is the fastest peregrine falcon diving speed ever recorded?The peregrine falcon is the world's fastest diving bird and the fastest animal. According to Guinness World Records, one was recorded travelling at more than 380 km/h while stooping - diving after prey - in 2005.It’s given that a peregrine falcon’s maximum speed while diving is 200 miles per hour and that 1 mile = 5280 feet. Therefore, a peregrine falcon’s maximum speed while diving is (200 miles/1 hour)(5280 feet/1 mile)=1,056,000 feet per hour.There are 60 minutes in 1 hour and 60 seconds in each minute, so there are (60)(60) = 3600 seconds in 1 hour. A peregrine falcon’s maximum speed while diving is therefore (1,056,000 feet/1 hour)(1 hour/3600 seconds) ,
which is approximately 293.33 feet per second. To the nearest whole number, this is 293 feet per second.
To learn more about fastest peregrine falcon diving speed refer to
https://brainly.com/question/24419453
#SPJ4
What are some examples of situations in which gel electrophoresis is used and the types of molecules that scientists separate using the technique.
Answer:
When the molecules are placed in the individual wells they are all at the same distance because al the wells were created with the same comb. Gel electrophoresis is applying an electrical current to separate the molecules. Once gel electrophoresis is ran, the negative dyes will run towards the positive end of the gel and the positive dyes will run towards the negative end of the gel. The heavier dyes will run a shorter distance compared to the lighter dyes, this is how they are separated out.
Explanation:
Answer:
A situation gel electrophoresis is used in DNA fragments like in a crime scene or to distinguish species.
Explanation:
what four elements does halogen bond with?
fluorine, chlorine, bromine, and iodine,
Why is the ph of a 0. 1 m solution of acetic acid in water higher than that of a 0. 1 m solution of hcl in water?.
The pH of a 0.1 M solution of acetic acid in water is higher than that of a 0.1 M solution of HCl in water because the acetic acid does not fully ionizes in water but HCl completely ionizes in water.
Acetic acid being a weak electrolyte, does not completely dissociates in water. So regardless of the concentration of acetic acid, the pH of 0.1 M acetic acid is higher.
CH₃COOH + H₂O → CH₃COO⁻ + H₃O⁺
HCl is a strong acid which dissociates into H⁺ and Cl⁻ ions in the water. In aqueous, the H⁺ joins a water molecule to form a hydronium ion, H₃O⁺.
HCl + H₂O → H₃O⁺ + Cl⁻
As pH = -log [H⁺], therefore lesser the [H⁺], greater will be the pH. HCl gives more H⁺ than acetic acid, therefore, pH of acetic acid is higher than HCl.
To learn more about pH,
https://brainly.com/question/14804040
#SPJ4
All chemical reactions obey the law of conservation of mass.
Give
the reason why the reaction between hydrochloric acid and calcium carbonate appears not to show conservation of mass.
The reason the reaction between hydrochloric acid and calcium carbonate appears not to obey the law of conservation of mass is the evolution of carbon dioxide gas.
What is the law of conservation of mass?The law states that in every chemical reaction, the mass of the participating atom is conserved but the atoms themselves can change forms.
Thus, for every atom, the mass before the reaction must also be equal to the mass after the reaction.
So, if two substances A (1 g) and B (1 g) react, the products should weigh: 1 + 1 = 2 g.
Now, in the case of the reaction between hydrochloric acid and calcium carbonate, something happens.
[tex]CaCO_3 + 2HCl -- > CaCl_2 + H_2O + CO_2[/tex]
One of the products formed is carbon dioxide gas. Unless the reaction vessel is sealed, the gas will escape and the weight of the products left will be less that the reactants.
More on the law of conservation of mass can be found here: https://brainly.com/question/28711001
#SPJ1
a sample of an organic compound (a nonelectrolyte) weighing 1.35 g lowered the freezing point of 10.0 g of benzene by 3.66 °c. assuming ideal solution behavior, calculate the molar mass of the compound.
A sample of an organic compound (a nonelectrolyte) weighing 1.35 g lowered the freezing point of 10.0 g of benzene by 3.66 °c. assuming ideal solution behavior molar mass of the compound is 189 g mol⁻¹
Here given data is a sample of an organic compound which is nonelectrolyte and weighing of this compound is 1.35 g lowered the freezing point 0.0 g of benzene by 3.66 °c then we have to find molar mass of the compound=?
So here from the given data the freezing point lowering (ΔTf) is known to be 3.66 °C. also, Kf for benzene can be obtained 11.2 means (Kf = 5.12 °C/m). therefore, the equation ΔTf = Kfm can be used to find the molality of the solution. the definition of molality is moles of solute per kilogram of solvent. by using the mass of the solvent, benzene, the number of moles of solute may be found. using this information with the grams of solute, the molar mass of the organic solute may be found
ΔTf = Kfm
3.66 °C = (5.12 °C/m) × m
M=mole of solute/kg solvent=0.715
Molality=0.715 mol solute/kg solvent=0.715 m
0.715 m=x/0.010 kg benzene
Xmol=0.715 × 0.010=7.15×10⁻³mol solute
Mol=g/molar mass
7.15×10⁻³mol solute=1.350g/molar mass
Molar mass= 189 g mol⁻¹
Know more about molar mass
https://brainly.com/question/28607404
#SPJ4
2 This question is about atomic structure and bonding. (a) Atoms are made up of protons, neutrons and electrons. Complete the table.
Answer:
Proton (p for positive): Positive +1 charge, relative mass of 1
Neutron (sounds like neutral): no charge, relative mass of 1
Electron (sounds like electric): negative charge, relative mass of 0.0005
Calcium nitrite is used as a corrosion inhibitor in lubricants. What is the molality of a solution prepared by dissolving 18. 5 g of calcium nitrite in 83. 5 g of distilled water?.
The molality of a solution prepared by dissolving 18.5 g of calcium nitrite in 83.5 g of distilled water is 1.677m.
Molality is defined as the ratio between the amount of solute in a solution and the mass of corresponding solvent in the solution.
m = moles of solute/mass of solvent(kg)
If we have 18.5 g of calcium nitrite, using the formula for molar mass, solve for its number of moles.
n = mass/MM
moles of solute = 18.5 g calcium nitrite / 132.089 g/mol
moles of solute = 0.1400570827 moles calcium nitrite
Using the formula for molality, solve the molality of solution prepared by dissolving 0.1400570827 moles calcium nitrite in 83.5 g of distilled water.
m = moles of solute/mass of solvent(kg)
m = 0.1400570827 moles calcium nitrite / 83.5 g(1kg/1000g)
m = 0.1400570827 moles calcium nitrite / 0.0835 kg
m = 1.677330332
m = 1.677
Learn more about molality here: https://brainly.com/question/24065939
#SPJ4
Consider the model of a sodium atom. An orange circle labeled upper n a is surrounded by three concentric circles. The innermost ring has dots at the north and south positions. The next ring has eight dots, evenly spaced, with dots aligning with those in the inner ring. The outermost ring has one dot at the north position. Which feature does the model show accurately?.
Consider the model of a sodium atom. An orange circle labeled upper n a is surrounded by three concentric circles. The innermost ring has dots at the north and south positions. The next ring has eight dots, evenly spaced, with dots aligning with those in the inner ring. The outermost ring has one dot at the north position. The distribution of electrons in different shells feature does the model show accurately.
Sodium is a chemical element with the atomic number 11 and the symbol Na (derived from the Latin natrium). It is a delicate, silvery-white metal that is exceedingly reactive. Due to its placement in group 1 of the periodic table, sodium is an alkali metal. 23Na is the only stable isotope of it.
The periodic table's chemical element sodium has the atom number 11 and the symbol Na (Natrium in Latin). Alkali metals include the soft, waxy, silvery sodium, which is a reactive metal that occurs frequently in natural substances (especially halite).
Alkali metal group (Group 1 [Ia]) element sodium (Na), according to the periodic table. The element sodium is a very delicate silvery-white.
Learn more about sodium atom:
https://brainly.com/question/25033306
#SPJ4
The complete question is ''Consider the model of a sodium atom. An orange circle labeled upper N a is surrounded by three concentric circles. The innermost ring has dots at the north and south positions. The next ring has eight dots, evenly spaced, with dots aligning with those in the inner ring. The outermost ring has one dot at the north position. Which feature does the model show accurately?
A) the size of the electrons in different shells
B) the shapes of the orbitals in different shells
C)the distribution of electrons in different shells
D)the orientation of the orbitals in different shells
Where do red pandas live?
A - in the Himalayan mountains range in souther Asia
B - in the Andes mountain range in South America
C - in the Amazon rainforest in Brazil
D - in the Nile River Delta in lower Egypt.
Answer:
Red pandas live in the Eastern Himalayas in places like China, Nepal, and Bhutan . They spend most of their time in trees. Their semi-retractable claws help them move easily from branch to branch.
Explanation:
my answer would be A
(b) Describe how copper sulfate solution is obtained from the plants used in
phytomining.
Plants are grown in soil that contains low grade ore. the plants absorb metal ions through their roots and concentrate these ions in their cells. the plants are harvested and burnt. the ash left behind contains metal compounds.
I hope this helps :)
2.1.4 practice you measure the mass of an apple using a balance. you get these three measurements:
The trials are precise but are not accurate.
The degree to which a measured value approaches a standard or true value is referred to as accuracy. Accuracy is achieved by taking small readings. On the other hand, precision is defined as how closely two or more measurements match one another.
Therefore, accuracy is the degree to which a measurement is near its real value, whereas precision is the degree to which subsequent measurements taken in the same circumstances get the same results.
Now, the three readings obtained by weighing an apple using a balance are trial 1, trial 2, and trial 3.
The mass of the apple during the first trial =167.0g.
The mass of the apple during the second trial =166.9g.
The mass of the apple during the third trial = 167.2g
The true mass of the apple =172g
Therefore, a true mass describes your results in terms of precision and accuracy.
Now, in your three trials to measure the weight of the mass of the apple, your readings replicates were extremely near to each other. As a result, your trials are precise. However, the true mass was 172 g, and if you average your three trials, you would get roughly 167.1 g, which isn't very near to the true mass. As a result, your trials are precise but not accurate.
Read more about Accuracy and Precision:
https://brainly.com/question/15276983
#SPJ4
You measure the mass of an apple using a balance. You get these three measurements: Trial 1: 167.0 g Trial 2: 166.9 g Trial 3: 167.2 g You know that the true mass of the apple is 172 g. Describe your results in terms of precision and accuracy. Explain your answer.
What are 4 chemistry branches
Answer:
physical, chemistry l, organic chemistry, inorganic chemistry, analytical chemistry and biochemistry
Explanation:
are the 5 primary branches of chemistry
A student in a lab measured the mass of 380 ml of regular coca cola and the mass of 380 ml of diet coca cola. He found the mass of regular coca cola to be 384 g, and the mass of diet coca cola to be 370g. What physical property of both drinks can you calculate based on the data obtained in experiment 1?.
The physical property of both drinks that we can calculate based on the data obtained is density
The density formula and the procedure we will use is:
d = m/v
Where:
v= volumed= densitym= massInformation about the problem:
v(regular coca cola)= 380 mlm(regular coca cola)= 384 gv(diet coca cola)= 380 mlm(diet coca cola)=370 gd(diet coca cola)= ?d(regular coca cola)= ?Applying the density formula, we get:
d(regular coca cola) = m(regular coca cola)/v(regular coca cola)
d(regular coca cola) = 384 g / 380 ml
d(regular coca cola) = 1.0105 g/ml
d(diet coca cola) = m(diet coca cola)/v(diet coca cola)
d(diet coca cola) = 370 g / 380 ml
d(diet coca cola) = 0.9737 g/ml
What is density?It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.
Learn more about density in: brainly.com/question/1354972
#SPJ4
? Question
elect the correct answer from each drop-down menu.
Complete this paragraph, which describes an ice cube changing from a solid to a liquid to a gas.
Water can exist in three states of matter. Imagine examining the changes of state from solid to liquid to gas by adding
▼ to ice. What would change or not change?
The size of the water molecules
As water changes state, the mass of the sample
However, the
of the water molecules does change during a change in state. The
evidence that supports this conclusion is that the volume of the sample changes.
Submit
As water changes state, the mass of the sample changes.
What happens when water molecules change from liquid to gas?The hydrogen bonds between water molecules completely dissolve when the heat is increased during the boiling process, allowing water molecules to escape into the air as gas.
The potential energy decreases as that of the liquid cools, which causes the molecules to begin to move more slowly. Ice is created when the molecules of water adhere to one another at a temperature of about 0°C. The molecules are still moving despite being in this solid state; we can't see it.
Water's molecular structure never changes, even though it can transition from a liquid state to a solid or gas state and back again.
To know more about potential energy :
https://brainly.com/question/24284560
#SPJ9
Many types of scientific equipment are used to perform different functions in the science lab which if the following combinations of equipment would be needed to bring one liter of water to 85 c
graduated cylinder, beaker, thermometer and hot plate can be used bring one liter of water to 85 c
graduated cylinder, measuring cylinder or mixing cylinder is the common piece of laboratory equipment that is used to measure the volume of liquid, narrow cylindrical shape and Each marked line on the graduated cylinder represents the amount of liquid that has to been measured- beaker is a glass container with flat bottom which scientists use to hold liquids. ... In Britain, a beaker is a drinking cup mainly used by children, but in the U.S. the word is primarily used to mean a cylindrical glass vessel for mixing, measuring, and pouring liquid chemicals- The thermometer is the instrument used for measuring temperature, sealed glass tube that contains column of liquid.- hot platelearn more about equipments here-
https://brainly.com/question/932658
#SPJ9
Which combination of forces in the table below would allow the rocket to launch?
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At 0°c, the volume of the gas is 371 ml. To what temperature must the gas be heated to occupy a volume of 557 ml?.
A sample of nitrogen gas is contained a piston with a freely moving cylinder in a piston with a freely moving cylinder at 0° C , the volume of the gas 371 ml. the temperature must the gas be heated a volume of 557 ml is 123.091°C
According to the Charles's law,
V1 / T1 = V2 / T2
here,
V1 = 371 ml
V2= 571 ml
T1 = 0°C = 273 K
T2 = ?
putting the values in the formula ,
V1 / T1 = V2 / T2
T2 = ( T1 × V1) / V1
= (273 K) × ( 557 ml) / 371 ml
= 152061 K / 371
= 409.8 K
In °C = 409.8 - 273
136.8 °C
Thus,A sample of nitrogen gas is contained a piston with a freely moving cylinder in a piston with a freely moving cylinder at 0° C , the volume of the gas 371 ml. the temperature must the gas be heated a volume of 557 ml is 136.8 °C.
To learn more about Charles's law here
https://brainly.com/question/16927784
#SPJ4
How many total atoms are in 0.310 g of P2O5?
The number of atoms in 0.310 g of P₂O₅ is 6.57 × 10²⁰ atoms.
How to calculate number of atoms?The number of atoms in a substance can be calculated by multiplying the number of moles present in that substance by Avogadro's number as follows:
no of atoms = no of moles × 6.02 × 10²³
According to this question, there are 0.310grams of phosphorus oxide (P₂O₅). The molar mass of P₂O₅ is 283.889 g/mol.
no of moles = 0.310g ÷ 283.889 g/mol
no of moles = 0.00109moles
The number of atoms = 6.02 × 10²³ × 0.00109 moles = 6.57 × 10²⁰ atoms
Therefore, 6.57 × 10²⁰ atoms is the number of atoms in P₂O₅.
Learn more about number of atoms at: https://brainly.com/question/8834373
#SPJ1
Forensic scientists use science to find evidence at a crime scene. Which sentence describes how forensic scientists could use observation to determine the time that a crime scene took place?
By looking at the body they can come up with an estimated time of how long it’s been without oxygen(dead).
volume entering the small intestine: 9,400 ml volume entering the large intestine: 750 ml volume leaving the large intestine: 300 ml what percentage of the water entering the small intestine is absorbed by the small intestine?
The percentage of the water entering the small intestine is absorbed by the small intestine is 92.02%
Calculation of the percentage:Volume of water that is leaving the small intestine should be
= 9400 - 750
=8650 ml
Now the percentage should be
= (8650/ 9400)100
= 92.02 %
Thus 92.02 % of the total water entering the small intestine is absorbed itself by the small intestine.
To know more about small intestine, visit:
https://brainly.com/question/24180887
#SPJ4
take only in consideration the carbon–carbon bond in the molecules. assign the correct orbitals to the molecule groups. (orbitals might be used more than once or not at all).
Carbon bond in the molecules is only taken into consideration, thus assigning the correct orbitals to molecule group, we get the Option A ethylene.
Carbon-Carbon bondA covalent link between two carbon atoms is known as a carbon-carbon bond. The single bond, that is consisted of two electrons—one from each of the two atoms—is the most prevalent type.
One kind of hybridized orbital from each of the carbon atoms are contributing to the formation of the carbon-carbon single bond, which is also known as a sigma bond.
Carbon and carbon have what type of bond?They have an ionic bond
A covalent link involving two C atoms is known as a carbon-carbon bond. The single bond with two electrons—one from each of the two atoms—is the most well-known type.
What four different sorts of bonds can carbon form?A single carbon atom can also make four different kinds of bonds with all the other atoms.
One double bond and two types of single bonds and a total pair of double bonds.
To know more about Carbon bond visit:
https://brainly.com/question/4704641
#SPJ4
Complete Question
Take only in consideration the carbon-carbon bond in the molecules. Assign the correct orbitals to the molecule groups. (Orbitals might be used more than once or not at all).
A) Ethylene
B) Ethane
C) Acetylene
How many atoms are in 2.4 g of uranium?
The number of atoms in 2.4 g of uranium is 6.07×10²¹ atoms
Avogadro's hypothesis1 mole of Uranium = 6.02×10²³ atoms
But
1 mole of Uranium = 238 g
Thus,
238 g of Uranium = 6.02×10²³ atoms
How to determine the numbber of atoms in 2.4 g of uraniumWe can obtain the numbber of atoms in 2.4 g of uranium as illustrated below:
238 g of Uranium = 6.02×10²³ atoms
Therefore,
2.4 g of Uranium = (2.4 g × 6.02×10²³ atoms) / 238 g
2.4 g of Uranium = 6.07×10²¹ atoms
Thus, we can conclude that 6.07×10²¹ atoms are present in 2.4 g of Uranium
Learn more about number of atom:
https://brainly.com/question/19793346
#SPJ1
If you add a chunk of zinc to a beaker of acid and zinc shavings to another beaker of acid, the sample with the zinc shavings will react faster. What property causes the increase in rate?.
The property that caused the sample with zinc shavings to react faster than the sample with the chunk of zinc is surface area.
The rate of a reaction is the rate at which reactants form products in a chemical reaction. There are various properties that increase or decrease the rate of reactions, which include temperature, catalyst, surface area and nature of the reaction.
In the question above, the main property that increased the rate of the reaction is surface area. Surface area is the amount of a solid reactant that is exposed. The more the surface area exposed, the faster the reaction.
The beaker of acid with the chunk of zinc is slower, because the zinc has less of its surface area exposed to the acid. In the second sample, reaction takes place on each of the zinc shavings, which will increase the rate at which products are going to form.
Learn more about zinc here:
https://brainly.com/question/21811823
#SPJ4
PLEASE HELP QUICKLY I'M REALLY CONFUSED AND NEED THIS IS SIMPLE DEFINITION
why do positive ions grow from left to right, and negative from right to left?
Answer:
It is quite known that in case of electrolyte there are no electrons. The electric current is basically due to flow of ions.
This is a solid that is formed during
a chemical reaction, typically in
solution.
Precipitate refers to a solid that develops from solution during a chemical process.
What kind of solid results from a chemical reaction in a solution?A solid that is distinct from any of the reactants is referred to as a precipitate. An insoluble product may arise when solutions containing ionic chemicals are combined.
Combination, disintegration, solitary, dual, and combustion are the five fundamental kinds of chemical processes. You may classify a reaction into one of these groups by looking at the reactants and products. Several categories will apply to some reactions.
When pieces of two ionic compounds are swapped, creating two new compounds, this reaction is known as a double replacement reaction (also known as a double displacement, swap, or metathesis reaction).
learn more about Precipitate refer
https://brainly.com/question/13016165
#SPJ9
The reaction of cr2o3 with silicon metal at high temperatures will make chromium metal. True or false?.
False
Pure chromium is produced either by the thermal reduction of Cr2O3 with aluminum or by the electrolysis of trivalent chromium solutions... Not Silicon
protecting against pathogens that have got into the body A.plasmaB.red blood cellsC.white blood cells
Answer: white blood cells
Explanation: they protect you from illnesses and diseases
The actual density of a certain material is 7.48g/cm^3. a student measures the density of the same material as 7.2g/cm^3.what is the percent error of the measurement? answer in units of %
The actual density of a certain material is 7.48g/[tex]cm^{3}[/tex]. a student measures the density of the same material as 7.2g/[tex]cm^{3}[/tex]. the percent error of the measurement is 3.74 %.
Percent Error is defined as difference between experimental value and the theoretical value divided by theoretical value and multiply by 100.
Percent Error =( | experimental value - theoretical value | ) / 100 %
here,
experimental value = 7.2 g/ [tex]cm^{3}[/tex]
theoretical value = 7.48 g/[tex]cm^{3}[/tex]
percent error ( % error) = ( | 7.2 - 7.48 | ) / 7.48 × 100 %
=( 0.28 / 7.48 ) × 100 %
= 3.74 %
Thus,The actual density of a certain material is 7.48g/[tex]cm^{3}[/tex]. a student measures the density of the same material as 7.2g/[tex]cm^{3}[/tex]. the percent error of the measurement is 3.74 %.
To learn more about Percent error here
https://brainly.com/question/3670306
#SPJ4
Given 50g and 27ml find density
Answer:
1.85g per cubic centimeter (g/cm3
Explanation:
because density=mass/volume, so it will be 50g divide by 27ml =. 1.85g/cm3
How might the government make sure scientific research is done in an ethical
way?
A. By letting public opinion determine what is ethical in scientific
research
B. By taking away research funds if certain ethical standards are not
met
C. By encouraging scientists to perform within their own ideas of
right and wrong
OD. By allowing scientists to do what they think is best
Answer: By taking away research funds if certain standards are not met