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aliina [53]
3 years ago
13

4. Write a chemical formula for a compound that has two atoms of oxygen (0) and

Chemistry
1 answer:
Katyanochek1 [597]3 years ago
5 0
The answer is Fe3O2 because there’s 2 oxygen and 3 iron
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Read 2 more answers
how many grams of molecular oxygen (O2) is produced from 13.8 grams of calcium chlorate (Ca(ClO3)2)in the following chemical rea
olga2289 [7]

Answer:

6.72 g

Explanation:

Given data:

Mass of calcium chlorate = 13.8 g

Mass of oxygen produced = ?

Solution:

Chemical equation:

Ca(ClO₃)₂        →      CaCl₂ + 3O₂

Number of moles of calcium chlorate:

Number of moles = mass / molar mass

Number of moles = 13.8 g/ 206.98 g/mol

Number of moles = 0.07 mol

Now we will compare the moles of oxygen and  calcium chlorate.

                 Ca(ClO₃)₂         :            O₂

                      1                   :              3

                    0.07               :            3×0.07=0.21 mol

Mass of oxygen:

Mass = number of moles × molar mass

Mass = 0.21 mol × 32 g/mol

Mass = 6.72 g

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Javier and Jessica are measuring the water temperature of a stream. Javier records the water temperature at 56°. Jessica tests t
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Explanation:

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Which of these scientists diagnosed smallpox and measles?
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