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Which number in a chemical formula tells you how many atoms of an element you have?
Subscript
Which number in a chemical formula tells you how many molecules of an element or compound you have?
Coefficient
How many molecules of carbon dioxide does this formula indicate you have: 6CO2?
6
If the number of atoms of each element in a chemical equation are not equal on both sides of a chemical equation, then the equation is -
Unbalanced
Which of the answers below would be a correct chemical symbol of an element? a. BE b. be c. bE d. Be
Be
Which of the following chemical formulas contains the most elements? a. CO b. NaCl c. NaHCO3 d. H2O
c. NaHCO3
Which of the following chemical formulas contains the most total atoms? a. CO b. H2O c. Fe2O3 d. C3H8
d. C3H8
Which of the following chemical formulas contains the most molecules? a. 5CO b. 3H2O c. 2Fe2O3 d. 4C3H8
a. 5CO
The __________ are the elements or compounds on the right side of a chemical equation.
products
A(n) ____________________ is a shorthand representation of an element or compound using chemical symbols.
Chemical Formula
In a(n) ____________________ equation the number of atoms for each element are equal for the reactants and products.
Balanced
The ____________________ are the elements or compounds on the left side of a chemical equation.
Reactants
Balanced or Unbalanced? SnO2 + 2H2 → Sn + H2O2
Unbalanced
Balanced or Unbalanced? 6CO2 + 6H2O → C6H12O6 + 6O2
Balanced
Balanced or Unbalanced? Ba3N2 + 6H2O → 3Ba(OH)2 + 2NH3
Balanced
Balanced or Unbalanced? 3C + 2Fe2O3 → 4Fe + 3CO2
Balanced
