H- Balancing Equations & Types of Reactions: Skills Check

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product. Example: A + B → AB.

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, ensure that the number of atoms of each element is the same on both sides of the equation by adjusting coefficients.

Front

What is the balanced equation for the reaction: Al + HCl → AlCl3 + H2?

Back

2 Al + 6 HCl → 2 AlCl3 + 3 H2.

Front

What is the activity series in chemistry?

Back

The activity series is a list of metals arranged in order of decreasing reactivity. It helps predict whether a metal will displace another in a reaction.

Front

What are the products of the reaction: Br2 (l) + KI (aq)?

Back

KBr + I2.

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products. Example: AB → A + B.

Front

What is a single replacement reaction?

Back

A single replacement reaction is a type of reaction where one element replaces another in a compound. Example: A + BC → AC + B.

Front

What is a double replacement reaction?

Back

A double replacement reaction is a type of reaction where the anions and cations of two different compounds switch places, forming two new compounds. Example: AB + CD → AD + CB.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What is the balanced equation for the reaction: Cl2 + NaI → ?

Back

Cl2 + 2 NaI → 2 NaCl + I2.