Unit 10 BR #1: Balanced Equations and Moles

Front

What are the elements/compounds on the LEFT side of the yield arrow known as?

Back

Reactants

Front

Back

Front

Balance the equation: _AlBr_3 + _K_2SO_4 → _KBr + _Al_2(SO_4)_3. What is the balanced equation?

Back

2 AlBr_3 + 3 K_2SO_4 → 6 KBr + 1 Al_2(SO_4)_3

Front

In a chemical equation, what does the arrow (→) represent?

Back

Yield

Front

Back

Front

Define 'Balanced Equation'.

Back

A balanced equation has the same number of each type of atom on both sides of the equation.

Front

What is the significance of coefficients in a balanced equation?

Back

Coefficients indicate the number of molecules or moles of each substance involved in the reaction.

Front

What is a mole in chemistry?

Back

A mole is a unit that measures the amount of substance, equivalent to 6.022 x 10^23 particles.

Front

Explain the Law of Conservation of Mass in relation to chemical equations.

Back

The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction; thus, the total mass of reactants equals the total mass of products.

Front

What is the difference between a reactant and a product?

Back

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