Chemical Reactions Test

Front

What is a single replacement reaction?

Back

A single replacement reaction is a type of chemical reaction where one element replaces another element in a compound, resulting in a new element and a new compound.

Front

Identify the reactants in the reaction: 2Mg + O₂ ---> 2MgO.

Back

The reactants are magnesium (Mg) and oxygen (O₂).

Front

What is a double replacement reaction?

Back

A double replacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds.

Front

What is the general form of a single displacement reaction?

Back

The general form of a single displacement reaction is A + BC → AC + B, where A is an element that displaces B from the compound BC.

Front

In the reaction Pb + FeSO₄ ----> PbSO₄ + Fe, what type of reaction is this?

Back

This is a single displacement reaction.

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

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation.

Front

What is the product of the reaction Na + Cl₂ --> NaCl?

Back

The product of the reaction is sodium chloride (NaCl).

Front

What is the difference between reactants and products in a chemical reaction?

Back

Reactants are the starting substances that undergo a chemical change, while products are the substances formed as a result of the reaction.

Front

What type of reaction is represented by the equation BaCl₂ + 2KI --> 2KCl + BaI₂?

Back

This is a double replacement reaction.