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A chemical reaction starts with 2 H2 and O2. According to the Law of Conservation of Mass, how many hydrogen and oxygen should be in the product?
Ca and Cl
How many molecules are present
Reactants
4 Hydrogen and 2 Oxygen
3, 4, 4, 1
6
True
2, 37, 24, 26
Which term refers to the molecules that are present before a chemical reaction occurs?
Ca and Cl
How many molecules are present
Reactants
4 Hydrogen and 2 Oxygen
3, 4, 4, 1
6
True
2, 37, 24, 26
How many valence electrons are there on an Oxygen atom?
Ca and Cl
How many molecules are present
Reactants
4 Hydrogen and 2 Oxygen
3, 4, 4, 1
6
True
2, 37, 24, 26
What does a subscript describe in a molecular formula?
Ca and Cl
How many molecules are present
Reactants
4 Hydrogen and 2 Oxygen
3, 4, 4, 1
6
True
2, 37, 24, 26
What coefficients would balance this equation? ___ C12H26 + ___ O2 --> ___ CO2 + ___ H2O
Ca and Cl
How many molecules are present
Reactants
4 Hydrogen and 2 Oxygen
3, 4, 4, 1
6
True
2, 37, 24, 26
Which of the following pairs is most likely to form an ionic bond?
Ca and Cl
How many molecules are present
Reactants
4 Hydrogen and 2 Oxygen
3, 4, 4, 1
6
True
2, 37, 24, 26
What coefficients would balance this equation? ___Fe + ___ H2O --> ___ H2 + ___ Fe3O4
Ca and Cl
How many molecules are present
Reactants
4 Hydrogen and 2 Oxygen
3, 4, 4, 1
6
True
2, 37, 24, 26
All compounds are molecules, but not all molecules are compounds. This statement is...
Ca and Cl
How many molecules are present
Reactants
4 Hydrogen and 2 Oxygen
3, 4, 4, 1
6
True
2, 37, 24, 26
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