Quarter 2 Extra Credit

Front

What is the molar mass of B2(CO3)3?

Back

201.648 g/mol

Front

Balance the equation: N2 + H2 --> ? NH3

Back

1,3,2

Front

What is the molecular formula for a compound with the empirical formula K2SO4 and a molecular mass of 696g?

Back

K8S4O16

Front

Balance the equation: CF4 + Br2 --> ? CBr4 + ? F2

Back

1,2,1,2

Front

How many moles of oxygen are produced when 6.7 moles of KClO3 decompose completely?

Back

10.1 mol

Front

Define molar mass.

Back

The mass of one mole of a substance, typically expressed in grams per mole (g/mol).

Front

What is the empirical formula?

Back

The simplest whole-number ratio of atoms of each element in a compound.

Front

Explain the concept of balancing chemical equations.

Back

Balancing chemical equations ensures that the number of atoms for each element is the same on both sides of the equation.

Front

What is the significance of the coefficients in a balanced equation?

Back

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

Front

Define molecular formula.

Back

A molecular formula shows the actual number of atoms of each element in a molecule.