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inessss [21]
3 years ago
15

Why did oceans not exist on Earth nearly 4 billion years ago?

Chemistry
1 answer:
rusak2 [61]3 years ago
7 0
B. water remained a gas because earth was very hot
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Which of the following factors would reduce the yield of a reaction?
NikAS [45]

The products being more stable than the reactants is the factor which would reduce the yield of a reaction and is denoted as option B under standard conditions.

<h3>What is a Chemical reaction?</h3>

This is the process in which one or more substances which are referred to as reactants are converted into new substances which we call the products.

A chemical reaction involves atoms exhibiting different bond formation so as to ensure they acquire an octet configuration and promotes proper stability of the products.

When the products are more stable than the reactants it means it is unable to form other products thereby decreasing the yield which is why it was chosen as the most appropriate choice.

Read more about Chemical reaction here brainly.com/question/11231920

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3 0
1 year ago
Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation.
Troyanec [42]

Answer: Ca(OH)_2+2HCl\rightarrow CaCl_2+2H_2O

Explanation:

Neutralization is a chemical reaction where an acid reacts with a base to form salt and water.

According to the 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.

The balanced chemical equation will be:

Ca(OH)_2+2HCl\rightarrow CaCl_2+2H_2O

Thus the reactants are calcium hydroxide (Ca(OH)_2 and hydrochloric acid (HCl)

4 0
2 years ago
Select ALL! the solutes below that would be soluble in a polar solvent (like water).
Fofino [41]

Answer:

K2SO4, NH3, HOCI, HCI, CH3NH2,  SiCl4, CO2, CH20

Explanation:

Substances are soluble in water when they are ionic or polar covalent substances.

If we look at the substances listed, K2SO4 is ionic while  NH3, HOCI, HCI, CH3NH2,  SiCl4, CO2, CH20 all contain polar covalent bonds which accounts for their water solubility.

Hence ionic and polar covalent substances are soluble in a polar solvent such as water.

6 0
3 years ago
Simple land plants lack seeds and
Marizza181 [45]

Answer:

The answer is d: leaves.

8 0
2 years ago
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Convert 7.8 moles of carbon tetrafluoride into grams.
Vesnalui [34]

Answer:

686.43363984 is the answer when 7.8 moles is converted.

6 0
2 years ago
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