Chemical Reactions

Identify the type of chemical reaction (a)  

• Synthesis
• Decomposition
• Single replacement
• Double replacement
• Combustion

Identify the type of chemical reaction

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion

This pictures simulates what type of reaction?

• Synthesis
• Decomposition
• Single Replacement
• Double Replacement

compound ---> element + element

• synthesis

• decomposition

• combustion

• single replacement

Identify the type of chemical reaction

• Synthesis

• Decomposition

• Single replacement

• Double replacement

• Combustion

Which of the following is an element?

• potassium chloride (KCl)

• water (H₂O)

• carbon (C)

• calcium carbonate (CaCO₃)

Which of the following describes a precipitate?

• a new liquid forms when a solid reactant is heated and melts

• a new solid product formed from two aqueous reactants

• a new gas forms when a solid is dissolved in a liquid

• bubbles form when two aqueous reactants are mixed

• a new solid forms when an aqueous reactant freezes

All of the following are indicators of a chemical reaction except one. Which one is NOT an indicator that a chemical reaction has taken place?

• the production of heat or light

• a color change

• the production of gas bubbles

• the dissolving of one substance in another

• an odor change

Examine the chemical equation. Check the box(es) below of the particular indicator(s) present in the equation.

Na₂CO₃ (s) + HCl (aq) --> H₂O (g) + NaCl (aq) + CO₂ (g)

• formation of water

• formation of a gas

• formation of a precipitate

• color change

Examine the chemical equation. Check the box(es) below of the particular indicator(s) present in the equation.

Na₂CO₃ (s) + HCl (aq) --> H₂O (g) + NaCl (aq) + CO₂ (g)

• formation of water

• formation of a gas

• formation of a precipitate

• color change