Describe meteor showers

Answers

Answer 1

Answer:

Answer:

a rain of asteroids coming from space

Explanation:

Answer 2

Answer: Meteor showers occur when dust or particles from asteroids or comets enter Earth's atmosphere at very high speed. When they hit the atmosphere, meteors rub against air particles and create friction, heating the meteors. The heat vaporizes most meteors, creating what we call shooting stars.

Related Questions

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At standard pressure, how do the boiling point and the freezing point of NaCl(aq) compare to the boiling point and the freezing point of H2O(image)?
What is the total number of carbon atoms in a molecule of ethanoic acid?(1) 1 (3) 3(2) 2 (4) 4
A chemist mixes two liquids together. The reaction produces a gas and a solid. According to the law of conservation of mass, what should the chemist observe when she compares the total masses of the substances before and after the reaction? A.The masses are equal. B.The masses are inconsistent. C.The mass of the substances before the reaction is greater than the mass of the substances after the reaction. D.The mass of the substances before the reaction is less than the mass of the substances after the reaction.

Which element (Na or Cl) is more likely to steal an outer electron from the other?

Answers

Answer:

Cl is more likely to than Na

Explanation:

The question asks for the element more take up an electron from the other

The ability of an atom to take take or give electrons in a chemical reaction, depends on its electron affinity and ionization energy, respectively

Chlorine, Cl, has the highest electron affinity in the periodic table which makes it attract electrons more towards itself

Sodium, Na, has a low ionization energy (about 2/5 of that of chlorine) than chlorine, Cl, making sodium more readily able to give its valence electron in a reaction

Therefore, Cl is more likely to take up an outer electron from Na.

You are throwing an object with a force of 140 N. The object accelerates 19.0 m/s/s. What is the mass of the object?

Answers

Answer:

7.4

Explanation:

F = m × a

F/a = m

m = 140 / 19

m = 7.4

You may recall that the products of the complete combustion of ahydrocarbon are water vapor and carbon dioxide gas. Write the balanced
equation showing the combustion of methane. Do not forget to include the
states of matter of the reactants and the products. Hint: Methane is a gas at
standard temperature and pressure.

Answers

Answer: $CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)$

Explanation: According to law of conservation of mass, mass can neither be created nor be destroyed.

Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

This is an example of combustion reaction in which hydrocarbon reacts with oxygen to form carbon dioxide and water. This is an exothermic reaction in which a large amount of heat is liberated, thus water also exists as vapors.

$CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)$

CH4 + 2O2 --> CO2 + 2H2O

What is the reaction when magnesium becomes magnesium oxide

Answers

Magnesium and oxygen reacting to form magnesium oxide is a synthesis reaction. This reaction occurs when many reactants proceeds to reaction forming a single product. Synthesis reactions release energy in the form of light or heat, therefore they are exothermic reaction.

After burning for three hours, a candle has lost half of its mad. Explain why this example does not violate the law of conversation of mass.

Answers

The law of mass conservation depicts that the mass of reactants is equal to the mass of products, so the mass of the candle is changed from solid state to gaseous state which have the same mass of the wasted candle.

What is the law of conversation of mass ?

According to the law of conservation of mass, it has been described that the mass neither formed nor destroyed, it can only transferred from one state to another state.

Due to changes in states of matter, the mass is only rearranged and changed, so during a chemical reaction, the mass of the reactants and the products are same in a closed reaction.

There for when burning the candle it only changes its state from solid to gaseous state that follow the law of conservation of mass.

Learn more about law of conversation of mass , here:

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well from my teacher when we did this experiment she said that I would most likely will violate it unless its covered up!

I really hope I helped thx!

How is ice cream made???? Hurry plsss!!!