Chemistry Final Review

What id the molar mass of UF₆?

• 101 g/mol

• 238 g/mol

• 257 g/mol

• 352 g/mol

What is the molar mass of Cl₂?

• 17 g/mol

• 35.5 g/mo;

• 71.0 g/mol

• 89 g/mol

What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__Al + __O₂--> __Al₂O₃

• 4,1 --> 2
• 4,3 --> 4
• 3,4 --> 1
• 4,3 --> 2

Tags

NGSS.HS-PS1-7

What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__AgNO₃ + __H₂S --> __Ag₂S+ __HNO₃

• 2,1 --> 1,2
• 1,2 --> 1,1
• 1,2 --> 1,2
• 1,2 --> 2,1

Tags

NGSS.MS-PS1-5

Which type of reaction is shown?

• Combustion

• single replacement

• double replacement

• decomposition

What type of reaction is shown?

• Decomposition

• Single replacement

• Combustion

• Composition (or Synthesis)

Tags

NGSS.HS-PS1-2

What type of reaction is this?

• Combination (or Synthesis)

• Single replacement

• Double replacement

• Decomposition

Which type of reaction is shown?

• Combustion

• Composition (or Synthesis)

• Decomposition

• Double replacement

Which type of reaction is shown?

• Single replacement

• Double replacement

• Combustion

• Decomposition

When balancing this equation, Fe + Cl₂ → FeCl₃, the correct coefficient for Cl₂?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-7