Unit 5: Chemical Reactions Review

Balance the chemical equation: ____ CF₄ + ____ Br₂ → ____ CBr₄ + ____ F₂

• CF₄ + 2 Br₂ → CBr₄ + 2 F₂

• 2 CF₄ + Br₂ → 2 CBr₄ + F₂

• CF₄ + Br₂ → CBr4 + 2 F₂

• CF₄ + 4 Br₂ → CBr₄ + 4 F₂

Tags

NGSS.MS-PS1-5

25 g of calcium reacts with 46 g of chlorine to produce _____ g of calcium chloride. +

• 21 g

• not enough information

• 71 g

• 96 g

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What type of chemical reaction is it?

AgNO₃ + NaCl → AgCl + NaNO₃

• Single replacement

• Decomposition

• Synthesis reaction

• Double replacement

• Combustion

Is this a chemical or physical property? Flammability

• Chemical

• Physical

Is this a chemical or physical property? Boiling point

• Physical

• Chemical

Tags

NGSS.MS-PS1-4

Is this a chemical or physical property? Ductility

• Physical

• Chemical

Is this a chemical or physical property? Solubility

• physical

• Chemical

Is this a chemical or physical property? Toxicity

• Chemical

• Physical

Tags

NGSS.MS-PS1-2

What type of chemical reaction is this? 2 H₂O → 2 H₂ + O₂

• Decomposition reaction

• synthesis reaction

• single displacement reaction

• combustion

The chemical reaction: 8 Fe + S8 → 8 FeS is a: ____________

• combustion reaction

• Decomposition reaction

• single replacement reaction

• synthesis reaction