What is the total magnification if we using objective lens 4x and our eyepiece (ocular) lens is 10x
40x
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7. Remains of meteroids that hit down the earth.

8. icy ball of rock that displays a coma, a fuzzy temporary atmosphere, or a tail when it travels close to the sun.

9. silicon, oxygen and at least one metal.

10. They provide information how the Earth obtained liquid water.

11. The resulting cloud would block out sunlight.

12. crater

13. Asteroid Belt

7. A meteorite is remains of meteoroids that hit down the earth.

8. A comet is an icy ball of rock that displays a coma, a fuzzy temporary atmosphere, or a tail when it travels close to the sun.

The term meteoroids is defined as the small rock pieces that revolve around the Sun.They typically consist of gases, ice particles, and dust.

9. The composes silicate are silicon, oxygen and at least one metal.

10.The scientists study comets because they provide information how the Earth obtained liquid water.

11. The global temperature of the Earth drop when struck by a massive

asteroid because the resulting cloud would block out sunlight.

12. When objects strike a surface of a planet, they leave a deep impression on the surface called crater.

13. Meteoroids are formed when asteroids collided and crushed into pieces. Based on this statement, the meteoroids originate in Asteroid Belt.

Thus, A meteorite is remains of meteoroids that hit down the earth.

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Answer:

1. Fe / H2

2. HNO3 / H2O

3. HCI / H2O

Answer:

1. Fe / H2

2. HNO3 / H2O

3. HCI / H2O

Answer:

The energy an object has due to its motion is called kinetic energy. Factors Affecting Kinetic Energy: the kinetic energy of an object depends on both its speed and its mass. The faster an object moves, the more kinetic energy it has.

Explanation:

Answer:

Magnesium hydroxide has 3 unique elements.

Explanation:

Long story short, 2 is the balancing compound in structure to make up hydroxide, therefore 1 compound would be left to create Mg(2O)H.

(This is only an opinion of mathematical science to me, I don't have complete understanding of this subject either, good luck.)

Answer:

0.48 moles of H₂ are produced.

Explanation:

Given data:

Number of moles of H₂ produced = ?

Mass of H₂SO₄ = 47 g

Solution:

Chemical equation:

2Al + 3H₂SO₄    →    Al₂(SO₄)₃ + 3H₂

Number of moles of H₂SO₄ :

Number of moles = mass/molar mass

Number of moles = 47 g/ 98 g/mol

Number of moles = 0.48 mol

Now we will compare the moles of H₂SO₄ and  H₂

                       H₂SO₄      :        H₂

                           3           :          3

                         0.48       :        0.48

Thus, 0.48 moles of H₂ are produced.

Answer:

Okay so set up an equation for what's happening

_C + _H + _Cl + O2 --> _CO2 + _H2O

0.451g of CO2. Convert to moles by using the molar mass of CO2 which is 44 g/mol. Now look at the ratio between Carbon and Oxygen in CO2. It's 1C:2O You just want to find C.. so do the number of moles CO2 and multiply it by 1 since the ratio says 1 carbon atom. Now you have moles of carbon. Put this number aside for later.

Do the same thing with H2O. Convert to moles by using the molar mass of H2O which is 18 g/mol. Now look at the ratio between Hydrogen and Oxygen. It's 2H:1O You just want H.. so do the number of moles of H2O and multiply it by 2 since there's 2 hydrogen atoms. Now you have the moles of hydrogen & put this number aside for later

Lastly, you need to find the chlorine. uuhhh I cant figure this part out

Explanation: ..

I hope I helped lol!

Answer:

the answer is yes

Explanation:

I don't no

Answer:

x^2 - a^2

Explanation:

The molecular formula : D) C₅H₁₀O₅

Given

The empirical formula CH₂O

The molar mass of 150 g/mol

Required

The molecular formula

Solution

The empirical formula is the smallest comparison of atoms of compound forming elements.  

A molecular formula is a formula that shows the number of atomic elements that make up a compound.  

(empirical formula) n = molecular formula  

(CH₂O)n = 150 g/mol

(12+2.1+16)n = 150

(30)n = 150

n = 5

Answer:

the particels becomes loose and wild, making gas happen when it is heated up

Liquids evaporate faster as they heat up and more particles have enough energy to break away. The particles need energy to overcome the attractions between them. At this point the liquid is boiling and turning to gas.

Answer:

i bought it cuz i need a cup?

Explanation:

Answer:

Best chemistry ever tho

Explanation:

LOL

The compound formed that has been neutral has been Magnesium and bromine. Thus, option D is correct.

The periodic table has been the arrangement of the elements with increasing atomic number and similarity in the reactivity.

The metals in the periodic table are elements that has been able to accept electrons, and nonmetals are the elements in the table that loses electrons to attain the stable noble gas configuration.

The metal and nonmetal form the neutral compound when there has been the formation of stable compound with the complete configuration.

The magnesium and lithium has been metals, while sulfur and bromine are nonmetals. Bromine has been the element of group 17. It has been able to gain an electron. Sulfur has been the nonmetal and required 2 electrons to complete its octet.

Lithium has been the metal with one valence electron, and magnesium with 2 valence electrons.

The neutral compound to be formed has been consisted of one metal with 2 valence electrons, and 2 nonmetals with 1 valence electrons.

Thus, the compound formed that has been neutral has been Magnesium and bromine. Thus, option D is correct.

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Answer:

with the molecular formula C3H5(ONO2)3, has a high nitrogen content (18.5 percent) and contains sufficient oxygen atoms to oxidize the carbon and hydrogen atoms while nitrogen is being liberated, so that it is one of the most powerful explosives known.

Explanation:

NTG reduces preload via venous dilation, and achieves modest afterload reduction via arterial dilation. These effects result in decreased myocardial oxygen demand. In addition, NTG induces coronary vasodilation, thereby increasing oxygen delivery.

The decomposition of nitroglycerin can result in so much more volume than the decomposition of sodium azide nitroglycerin contains a lot of nitrogen (18.5%) and has enough oxygen atoms.

A measurement of three-dimensional space is volume. It is frequently expressed quantitatively using SI-derived units, like the cubic metre or litre, or different imperial or US-standard units, including the gallon, quart and cubic inch. Volume and length (cubed) have a symbiotic relationship.

The total volume much a container is usually thought of as its capacity, not as the amount of space it takes up. In other words, the volume is the quantity of fluid (liquid or gas) that the container may hold. The decomposition of nitroglycerin can result in so much more volume than the decomposition of sodium azide nitroglycerin contains a lot of nitrogen (18.5%) and has enough oxygen atoms for the nitrogen to be liberated while also oxidising the hydrogen and carbon atoms.

Therefore, the decomposition of nitroglycerin can result in so much more volume than the decomposition of sodium azide nitroglycerin contains a lot of nitrogen (18.5%) and has enough oxygen atoms.

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Answer:

See explanation

Explanation:

We have been told in the question that the equation of the reaction is; 1 slice of cheese + 2 slices of bread = 1 Grilled cheese sandwich ( mole ratio is, 1:2:1) .

Then the reagents are 10 slices of cheese 30 slices of bread. It then follows that 10 slices of cheese should be combined with 20 slices of bread according to the mole ratio.

However, we have 30 slices of bread and 10 slices of cheese so cheese is the limiting reactant while bread is the reactant in excess.

Yes, the number of glilled chese sandwishes he can make is decided by the limiting reactant because it gets used up most.

Answer:

a. Two smaller, more stable nuclei

Explanation:

Answer:

a

Explanation:

took the quiz

Answer:

you mean "jointed." jointed appendages give arthropods much greater movement flexibility and range.

The answer is 0.017110756386119. We assume you are converting between moles NaCl and gram. You can view more details on each measurement unit: This compound is also known as Sodium Chloride. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles NaCl, or 58.44277 grams.

Hope I helped :)

According to the stoichiometry of the given chemical equation, 1.45 g of Cl₂ are needed to produce 2.4 grams of NaCl.

Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.

According to the given chemical equation, 70.906 g of chlorine gives 117 g sodium chloride, thus, 2.4 g of sodium chloride will be produced, when 2.4×70.906/117= 1.45 g of Cl₂ reacts.

Thus, according to the stoichiometry of the given chemical equation, 1.45 g of Cl₂ are needed to produce 2.4 grams of NaCl.

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Answer:

I am expecting that is option is d is correct answer

Explanation:

because in the grassland some animals can live

Answer:

325 K

Explanation:

Answer:

The difference between an innate behavior and a learned one is that innate behaviors are those an animal will engage in from birth without any intervention. Learned behavior is something an animal discovers through trial, error and observation.

Explanation:

Answer:

When she rubs her hands together, it causes heat or friction

Answer:

Q1. C

Q2.ring number 1 is 2

ring number 2 is 8 and

ring number 3 is 18

Q3. p can contain 6 electrons max

and d can contain 10 electrons max

Q4. D

Answer:

The effects of microgravity can be seen when astronauts and objects float in space. Microgravity can be experienced in other ways, as well. "Micro-" means "very small," so microgravity refers to the condition where gravity seems to be very small.

ANSWER: MICROGRAVITY

Answer:

hydropowered

Explanation:

 took the test

Hydropower is the energy source that produces the least amount of air pollution. Therefore, the correct option is option D.

Energy is The capacity or ability to do tasks, such as the ability to forcefully move an object. Energy can exist in a multitude of forms and can change from one to another, including thermal, mechanical, chemical, and nuclear energy. The flow of electric charges known as electrons is what generates electrical energy.

Energy is utilised to make a wide range of goods, power transportation, and power the appliances we use to heat and light our houses. The production of electricity is the main purpose of these various energy sources. All of these many energy sources contribute to the electrical power reserve that is then distributed to various locations via high-powered lines. Hydropower is the energy source that produces the least amount of air pollution.

Therefore, the correct option is option D.

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Answer:

Explanation:

Chapter 4: Energy from Combustion The primary means of generating energy for human

endeavors is the combustion of fuels.

Coal - burned in power plants

Gasoline - burned in automobiles

Natural gas - heating

Heating oil – heating

.Propane, charcoal, wood, candles, …

Combustion (burning in air) releases the chemical energy,stored in the chemical bonds of the fuels.  

BRAINLY PLZ

Mass of  Na2SO4= 514.18 grams

Given

423.67 g of NaCl

Required

mass of  Na2SO4

Solution

Reaction

2NaCl + H2SO4 → Na2SO4 + 2HCl

mol NaCl :

= 423.67 g : 58.5 g/mol

= 7.24

From the equation, mol Na2SO4 :

= 1/2 x mol NaCl

= 1/2 x 7.24

= 3.62

Mass  Na2SO4 :

= 3.62 mol x 142,04 g/mol

= 514.18 grams