Stoichiometry
The chemical recipe

Carbon atom
+
Oxygen molecule
Carbon dioxide molecule

How many molecules of carbon dioxide are produced if we use 4 atoms of carbon and plenty of oxygen molecules? For every one atom of carbon used, we get one molecule of carbon dioxide. So for 4 atoms of carbon we get 4 molecules of carbon dioxide.

zinc atom
+
2hydrochloric acid
zinc chloride
+
hydrogen molecule

How many molecules of hydrogen will be produced if 4 atoms of Zn react?

 
Calcium atom
+
2water molecule
calcium hydroxide
+
hydrogen molecule

How many molecules of hydrogen will be produced if 4 molecules of water react?

 
methane molecule
+
2oxygen molecule
carbon dioxide molecule
+
2water molecule

How many molecules of carbon dioxide will be produced if 4 molecules of oxygen react?

 
2ethane molecule
+
7oxygen molecule
4carbon dioxide molecule
+
6water molecule

How many molecules of carbon dioxide will be produced if 14 molecules of oxygen react?

 
2carbon monoxide
+
oxygen molecule
2carbon dioxide molecule

How many molecules of carbon dioxide will be produced if 4 molecules of oxygen react?

 

Solutions

Continue with stoichiometry.

 

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