HChem 1st Semester Exam Review - 2

How many significant figures: 153.0 mL

• 1
• 2
• 3
• 4

How many significant figures: 0.012 km

• 1
• 2
• 3
• 4

Solve and give your answer with the correct number of significant figures
24.28 + 12.5

• 3.687 x 10¹
• 36.8
• 37
• 3.70x10¹

Solve and give your answer with the correct number of significant figures
1421-34

• 1.39x10³
• 1387
• 1390
• 1400

Identify the IMF exist in CH₄

• dipole-dipole forces

• london forces

• ionic

• hydrogen bonding

Identify the IMF exist in NH₃

• london dispersion forces

• ionic

• dipole-dipole forces

• hydrogen bonding

Which of the following has the lowest boiling point?

• PH₃

• H₂O

• BF₃

• NH₃

What type of chemical reaction is this?
Al(OH)₃ → Al₂O₃  + H₂O

• Decomposition
• Combustion
• Combination/Synthesis

• Single Displacement 

Predict the products for this reaction

Mg (s) + CuCl (aq) →

• MgCl₂ (aq) + Cu (s)

• Mg (s) + Cu (s)

• MgCu (s) + Cl_{2 (g)}

• MgCl (aq) + Cu_{2 (s)}

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Predict the products, before balancing.

Co₂(SO₄)₃ + NaOH -->

• CoOH + NaSO₄

• CoNa + OH(SO₄)₃

• Co₂OH + Na(SO₄)₃

• Co(OH)₃ + Na₂SO₄

• no reaction

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2