Reaction Types and Balancing

Front

What type of reaction is represented by NH₃ + HCl → NH₄Cl?

Back

Synthesis reaction: A reaction where two or more reactants combine to form a single product.

Front

What can you only add, change, or remove when balancing chemical equations?

Back

Coefficients: Numbers placed before compounds to balance the number of atoms of each element.

Front

What type of reaction is represented by 2 AgNO₃ + Cu → Cu(NO₃)₂ + 2 Ag?

Back

Single displacement reaction: A reaction where one element replaces another in a compound.

Front

How is the equation H₂O₂ → H₂O + O₂ balanced?

Back

Balanced as 2,2,1: 2 H₂O₂ → 2 H₂O + 1 O₂.

Front

Balance the equation: ____ H₂SO₄ + ____ NaNO₂ → ____ HNO₂ + ____ Na₂SO₄.

Back

Balanced as 1,2,2,1.

Front

What is a decomposition reaction?

Back

A reaction where a single compound breaks down into two or more simpler products.

Front

What is a double replacement reaction?

Back

A reaction where two compounds exchange ions to form two new compounds.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

Front

What is the difference between coefficients and subscripts in a chemical equation?

Back

Coefficients indicate the number of molecules, while subscripts indicate the number of atoms in a molecule.

Front

What is an example of a synthesis reaction?

Back

2H₂ + O₂ → 2H₂O: Hydrogen and oxygen combine to form water.