Chemistry Finals Review

_BaS + _PtF₂ → _BaF₂ + _PtS

• 1 BaS + 1 PtF₂ → 1 BaF₂ + 1 PtS
• 4 BaS + 2 PtF₂ → 1 BaF₂ +  1 PtS
• 1 BaS + 2 PtF₂→ 2 BaF₂ +  2 PtS
• 1 BaS + 3 PtF₂ →1 BaF₂ +  2 PtS

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

_AlBr₃ + _K₂SO₄ → _KBr + _Al₂(SO₄)₃

• 6 AlBr₃ + 1 K₂SO₄ → 6 KBr + 1 Al₂(SO₄)₃
• 2 AlBr₃ + 3 K₂SO₄ → 6 KBr + 1 Al₂(SO₄)₃
• 1 AlBr₃ + 1 K₂SO₄ → 2 KBr + 3 Al₂(SO₄)₃
• 2 AlBr₃ + 3 K₂SO₄ → 1 KBr + 2 Al₂(SO₄)₃

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

The following is what type of reaction:
PbCl₂ + AgNO₃ → Pb(NO₃)₂ + AgCl

• Synthesis
• Decomposition
• Single Replacement
• Double Replacement

3Ca + 2AlCl₃ --> 3CaCl₂ + 2Al

• Synthesis
• Decomposition
• Single Displacement
• Double Displacement

C₄H₁₂ + O₂ → CO₂ + H₂O

• Synthesis
• Combustion
• Single Replacement
• Double Replacement

A 55-gram egg is placed in a pot. After the egg is boiled, which is most likely the mass of the egg?

• 50 
• 55 

Tags

NGSS.HS-PS1-7

When dissolved in water, the solution is a good conductor of electricity.

• ionic compounds
• covalent compounds

usually soft

• ionic compounds
• covalent compounds

Compounds composed of a ______________ and _____________ like the compound CaCl₂ , are ionic compounds.

• metal ... metal

• nonmetal ... nonmetal

• metal ... nonmetal

Where are the non-metallic elements found in the periodic table?

• In the middle
• In the top rows
• On the left-hand side
• On the right-hand side