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3 years ago

Two atoms that are isotopes of one another must have the same number of what? A.neutrons

Chemistry

1 answer:

seraphim [82]3 years ago

3 0

Two atoms that are isotopes of one another that must the same number of protons ( answer B)

<em><u>Explanation</u></em>

Isotope are two or more forms of the same element that contain the same number of protons and electron but different number of neutrons.

For example carbon 12 and carbon 14 are both isotope of carbon.

Carbon 12 has 12 neutrons while carbon 14 has 8 neutrons.

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Use the information in the tables to determine whether the solution of the salt formed from the given acid + base combinations w

Shkiper50 [21]

Answer:

neutral,

acidic,

basic

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3 years ago

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Select the substance that is thought to be partially responsible for depleting the concentration of ozone in the stratosphere. s

gogolik [260]

Answer:

cfcl3

Explanation:

When the cfcl3 in the atmosphere is hit by UV rays from the sun, it decomposes to Cl atoms. These Cl atoms then react with the ozone producing O2 and ClO. The ClO bombard with O atoms splitting the ClO up and the free Cl atom again bonds to another O3 molecule hence reducing it. One ClO can reduce several O3 molecules (up to 100,000) creating an ozone hole.

2Cl + O3 → 2ClO + 2O2

2ClO + 2O → 2Cl + 2O2

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3 years ago

Explain how it is possible for a compound to have both ionic and covalent bonds

zubka84 [21]

The atoms which make up the ion are covalently bonded to one another. 19) It is possible for a compound<span> to possess </span>both ionic and covalent bonding<span>. a. If one of the </span>ions<span> is polyatomic then there will be </span>covalent bonding<span> within it.</span>

8 0

4 years ago

What is the product of a substitution reaction if the reactants are fluoroethane and sodium hydroxide?

Archy [21]

Flouroethanol and
sodium hydride is the product

3 0

4 years ago

What is the theoretical yield of oxygen when 29.2 g of water are decomposed by electrolysis according to the balanced equation:

Zinaida [17]

Taking into account the reaction stoichiometry, the theoretical yield of oxygen when 29.2 g of water are decomposed by electrolysis is 25.956 grams.

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

2 H₂O → 2 H₂ + O₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

H₂O: 2 moles
H₂: 2 moles
O₂: 1 mole

The molar mass of the compounds is:

H₂O: 18 g/mole
H₂: 2 g/mole
O₂: 32 g/mole

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

H₂O: 2 moles ×18 g/mole= 36 grams
H₂: 2 moles ×2 g/mole= 4 grams
O₂: 1 mole ×32 g/mole= 32 grams

<h3>Definition of theorical yield</h3>

The theoretical yield is the amount of product acquired through the complete conversion of all reagents in the final product, that is, it is the maximum amount of product that could be formed from the given amounts of reagents.

<h3>Theorical yield of O₂</h3>

The following rule of three can be applied: if by reaction stoichiometry 36 grams of water form 32 grams of oxygen, 29.2 grams of water form how much mass of oxygen?

$mass of oxygen=\frac{29.2 grams of waterx32 grams of oxygen}{36 grams of water}$

<u><em>mass of oxygen= 25.956 grams</em></u>

Finally, the theoretical yield of oxygen when 29.2 g of water are decomposed by electrolysis is 25.956 grams.

Learn more about the reaction stoichiometry:

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6 0

2 years ago