Unit 3 Review

Avogadro's number is:

• 6.022x10^23

• 6.022x10^2

• 6.022

• 6.022x10^-23

Tags

NGSS.HS-PS1-7

Avogadro's number represents:

• number of molecules in 1 mole

• number of atoms in 1 mole

• number of particles in 1 mole

• all of the above

To convert from mass to moles, what conversion factor do you need?

• molar volume

• mole ratio

• molar mass

• Avogadro's number

To convert from moles A to moles B, what conversion factor do you need?

• molar volume

• mole ratio

• molar mass

• Avogadro's number

Answer explanation

Use the coefficients directly from the balanced equation when converting between moles of reactants and moles of products

To convert between moles and molecules/ atoms, which conversion factor do you need?

• molar volume

• mole ratio

• molar mass

• Avogadro's number

To convert between Liters of a gas and moles, which conversion factor do you need?

• molar volume

• mole ratio

• molar mass

• Avogadro's number

Which mole ratio is correct for the following balanced equation:

• 1 Cl₂ : 4 CCl₄

• 4 Cl₂ : 1 CCl₄

• 4 Cl₂ : 2 HCl

• 1 CH₄ : 2 HCl

Tags

NGSS.HS-PS1-7

Balance the following chemical equation:

Tags

NGSS.HS-PS1-7

Balance the following equation: #1 ONLY

Tags

NGSS.HS-PS1-7

Balance the following equation: #3 ONLY

Tags

NGSS.HS-PS1-7