Type of Reactions

What type of reaction is displayed below?
2Al + Fe₂O₃ → 2Fe + Al₂O₃

• Single Replacement

• Double Replacement

• Synthesis

• Combustion

What type of reaction is characterized by two compounds switching bonding partners?

• Single Replacement

• Combustion

• Synthesis

• Double Replacement

What type of reaction is this?

• Endothermic

• Exothermic

Tags

NGSS.HS-PS1-4

During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______. 

• Warm

• Cold

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Which type of reaction takes place in the presence of oxygen and produces carbon dioxide and water?

• double replacement 

• decomposition 

• combustion 

• single replacement

Is the reaction below exothermic or endothermic?
CH₄ + 2O₂ → CO₂ + H₂O + heat

• exothermic

• endothermic

Tags

NGSS.HS-PS1-4

A ______________ is a substance that increases the rate of a reaction without being used up during the reaction. 

• catalyst

• product

• reactant

• solute

Tags

NGSS.HS-PS1-5

Baking bread and cooking an egg are examples of....?

• Endothermic processes

• Exothermic processess

• None of these 

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Why does a higher concentration increase the rate of reaction?

• it increases the amount of reactants

• it lowers the activation energy

• it increases the energy of particle collisions

• it increases the frequency of particle collisions because there are more collision sites

Tags

NGSS.HS-PS1-5

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

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement