Unit 3 Reactions

Front

What is a Double Replacement Reaction?

Back

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

Front

Write the balanced equation for the reaction between KOH and H₃PO₄.

Back

KOH(aq) + H₃PO₄(aq) → K₃PO₄ + 3H₂O

Front

What does the symbol (aq) represent in a chemical equation?

Back

(aq) indicates that a substance is dissolved in water, forming an aqueous solution.

Front

What is the effect of increasing surface area on the rate of reaction?

Back

Increasing surface area increases the rate of reaction by allowing more particles to collide.

Front

What type of reaction is represented by the equation: AgNO₃ + KCl → AgCl + KNO₃?

Back

This is a Double Replacement Reaction.

Front

Define a Decomposition Reaction.

Back

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

Front

What is the general form of a Synthesis Reaction?

Back

A + B → AB, where two or more reactants combine to form a single product.

Front

What is the role of a catalyst in a chemical reaction?

Back

A catalyst speeds up a reaction without being consumed in the process.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its identity, while a chemical change results in the formation of new substances.

Front

What is the Law of Conservation of Mass?

Back

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