6th - Counting Atoms, Classifying and Balancing Equations

Front

What is the definition of a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products involved.

Front

What are reactants in a chemical equation?

Back

Reactants are the starting substances that undergo a chemical change in a reaction.

Front

What are products in a chemical equation?

Back

Products are the substances formed as a result of a chemical reaction.

Front

What is the purpose of balancing a chemical equation?

Back

The purpose of balancing a chemical equation is to ensure that the number of atoms of each element is the same on both sides of the equation, following the law of conservation of mass.

Front

What is a coefficient in a chemical equation?

Back

A coefficient is a large number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.

Front

How many oxygen atoms are in 2H2O?

Back

4

Front

How many chlorine atoms are in 3MgCl2?

Back

6

Front

What does the arrow in a chemical equation represent?

Back

The arrow in a chemical equation represents the direction of the reaction, indicating that reactants are transformed into products.

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 many hydrogen atoms are in 3H2SO4?

Back

6