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Anna [14]
3 years ago
13

Select all the correct answers.

Chemistry
1 answer:
elena-14-01-66 [18.8K]3 years ago
5 0
<h3>Hi!</h3>

<h3>The correct options would be:</h3>

1, 3 and 4.

In an alpha decay, the atom's mass number is reduced by 4, and the atomic number is reduced by two following the emission of an alpha particle (2 protons and 2 neutrons).

In gamma decay, the atom releases energy spontaneously to stabilize itself, and this energy is released in the form of photons.

<h3>Hope this helps!</h3>
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The combustion of ________ has added great quantities of carbon dioxide to the atmosphere. Group of answer choices
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Problem Page Gaseous butane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 5.2 g o
stich3 [128]

Answer: 0.0 grams

Explanation:

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

a) moles of butane

\text{Number of moles}=\frac{5.2g}{58.12g/mol}=0.09moles

b) moles of oxygen

\text{Number of moles}=\frac{32.6g}{32g/mol}=1.02moles

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According to stoichiometry :

2 moles of butane require 13 moles of O_2

Thus 0.09 moles of butane will require =\frac{13}{2}\times 0.09=0.585moles  of O_2

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Thus all the butane will be consumed and 0.0 grams of butane will be left.

7 0
2 years ago
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