Review for Chemical Reactions and pH

Front

What is a chemical reaction?

Back

A process where substances (reactants) undergo a transformation to form new substances (products).

Front

What is a salt in a chemical reaction?

Back

A salt is an ionic compound formed from the neutralization reaction of an acid and a base.

Front

Identify the salt in the reaction: Zn(OH)2 + HNO3 → H2O + Zn(NO3)2.

Back

Zn(NO3)2.

Front

What type of reaction is Zn + H2S → ZnS + H2?

Back

Single replacement reaction.

Front

What is a double displacement reaction?

Back

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

Front

What is a hydrocarbon?

Back

A compound that contains only carbon and hydrogen.

Front

What is evidence of a chemical reaction?

Back

Any indication that a new substance has formed.

Front

What is a synthesis reaction?

Back

A 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 the pH scale?

Back

A scale that measures the acidity or basicity of a solution, ranging from 0 (acidic) to 14 (basic).