Balancing chemical equations

Front

What are coefficients in a chemical equation?

Back

Coefficients are the numbers placed in front of the compounds in a chemical equation to indicate how many molecules or moles of each substance are involved in the reaction.

Front

How many elements are present in the compound C6H12O6?

Back

There are 3 elements: Carbon (C), Hydrogen (H), and Oxygen (O).

Front

What is the right part of a chemical equation called?

Back

The right part of a chemical equation is called the Products.

Front

Is the reaction 2 Mg + O2 --> 2 MgO balanced?

Back

Yes, this reaction is balanced because the number of atoms of each element is the same on both sides of the equation.

Front

What is the left part of a chemical equation called?

Back

The left part of a chemical equation is called the Reactants.

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products along with their quantities.

Front

What does it mean to balance a chemical equation?

Back

Balancing a chemical equation means ensuring that the number of atoms of each element is the same on both sides of the equation.

Front

What are subscripts in a chemical formula?

Back

Subscripts are the small numbers written to the lower right of an element symbol in a chemical formula, indicating the number of atoms of that element in a molecule.

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 a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes change during a chemical reaction, found on the left side of the equation.