Unit 5 Standard Chemistry: Chemical Reactions Remediation

Front

What is a single replacement reaction?

Back

A chemical reaction where one element replaces another in a compound, resulting in a new compound and a free element.

Front

Identify the type of reaction: 3Fe + 4H2O -> Fe3O4 + 4H2

Back

Single replacement reaction.

Front

What are the coefficients needed to balance the equation: 2H2 + O2 -> 2H2O?

Back

2, 1, 2.

Front

What is an exothermic reaction?

Back

A reaction that releases energy, usually in the form of heat, to the surroundings.

Front

Identify the type of reaction: O2(g) + 2H2(g) -> 2H2O(g) + Energy

Back

Exothermic reaction.

Front

What is a synthesis reaction?

Back

A type of reaction where two or more reactants combine to form a single product.

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 or bonds 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 role of catalysts in chemical reactions?

Back

Catalysts speed up chemical reactions without being consumed in the process.