Balancing Chemical Equations

Front

Law of Conservation of Mass

Back

Matter cannot be gained or lost in a chemical reaction.

Front

What is the left part of a chemical equation called?
2H_{2 +} O₂ --> 2H₂O

Back

Reactants

Front

What is the right part of a chemical equation called?
2H_{2 +}O₂ --> 2H₂O

Back

Products

Front

Total number of atoms in 5Na₃PO₄

Back

40

Front

How many Mn atoms are found in the following compound?
3Cr(MnO₄)₆

Back

18

Front

What is the little number after an element in a chemical equation called?
Example: H₂

Back

Subscript

Front

What is the number before a chemical formula called?
Ex: 2H₂ + O₂ --> 2H₂O

Back

Coefficient

Front

What coefficient should be used to make the equation N₂+O₂--> _NO balanced? Options: 1, 2, 3, 4

Back

2

Front

How many HCl molecules do you need to balance this equation? Mg + __HCl ---> MgCl₂ + H₂

Back

2

Front

Balance this equation: _Al +_HCl --> _H₂ +_AlCl₃

Back

2,6,3,2