Chemical Reactions Unit 2 review

What is a chemical reaction?

• a chemical and physical change in order to form new substances

• A process in which substances undergo a change in state

• A process in which substances undergo a physical change

• A process in which substances undergo a change in temperature

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What does the arrow in a chemical equation represent?

• Yield

• Equals

• Arrow to make new substance

• Coefficient

What is a reactant in a chemical equation?

• The arrow in the equation

• The new substance made after the chemical reaction

• The substance or substances used in the reaction

• The coefficient in the equation

Tags

NGSS.MS-PS1-1

What is a product in a chemical equation?

• The arrow in the equation

• The new substance made after the chemical reaction

• The substance used in the reaction

• The coefficient in the equation

Tags

NGSS.HS-PS1-7

What type of reaction is represented by A + B → AB?

• Synthesis or combination reaction

• Decomposition reaction

• Single replacement reaction

• Double replacement reaction

What type of reaction is represented by AB → A + B?

• Synthesis or combination reaction

• Decomposition reaction

• Double replacement reaction

• Single replacement reaction

What type of reaction is represented by AB + C → AC + B?

• Decomposition reaction

• Synthesis or combination reaction

• Double replacement reaction

• Single replacement reaction

What type of reaction is represented by AB + CD → AD + CB?

• Combination

• Single replacement

• Double replacement

• Combustion

What type of reaction is represented by CxHy + O2 → CO2 + H2O?

• Synthesis

• Double Replacement

• Combustion

• Single Replacement

The 1st Law of Thermodynamics states that energy cannot be (a)  

Tags

NGSS.HS-PS3-2