Grade 11 - Molar Mass and Balancing

What is the molar mass of NaCl?

• 49.46 g/mol

• 58.44 g/mol

• 152.92 g/mol

• 161.90 g/mol

Tags

NGSS.HS-PS1-1

What is the molar mass of MgF₂?

• 62.31 g/mol

• 67.62 g/mol

• 43.31 g/mol

• 86.62 g/mol

What is the molar mass of Al₂O₃?

• 42.98 g/mol

• 69.96 g/mol

• 85.96 g/mol

• 101.96 g/mol

What is the molar mass of Al(NO₃)₃?

• 62.01 g/mol

• 88.99 g/mol

• 151.00 g/mol

• 213.01 g/mol

What is the molar mass of SrS?

• 87.62 g/mol

• 119.69 g/mol

• 151.76 g/mol

• 32.07 g/mol

What is the molar mass of NaOH?

• 40.00 g/mol

• 50.00 g/mol

• 60.00 g/mol

• 70.00 g/mol

What is the left part of a chemical equation called?

2H₂ + O₂ ---> 2H₂O

• Reactants

• Yields

• Products

• Chemical equation

What is the total number of atoms present in 5Na₃PO₄?

• 5

• 55

• 40

• 8

Tags

NGSS.MS-PS1-1

What is the little number after an element in a chemical equation called?

Example: H₂

• Coefficient

• Atom

• Subscript

• Equation

Is the following equation balanced?

Al + O₂ ---> 2Al₂O₃

• YES

• NO

Tags

NGSS.MS-PS1-5