Quarter 2 Chemistry Test

This is the formation of new substances with properties different from the original materials.

• Chemical Kinetics

• Chemical Reactions

• Collision Theory

• Speed of Reaction

Tags

NGSS.HS-PS1-4

What is the speed of a chemical reaction called?

• Rate of Reaction

• Speed of Reaction

• Fast Process

• Slow Process

Tags

NGSS.HS-PS1-5

In Collision Theory, for reactions to occur, molecules, ions, or atoms must collide.

• True

• False

Tags

NGSS.HS-PS1-5

Acids/Bases can cause certain chemical dyes, called indicators, to change color

• True

• False

This is a type of collision in a reaction does not take place, thus not creating change in the product concentration or change in the chemical reaction.

• Ineffective Collision

• ineffectual Collision

• No Collision

• Fake Collision

Tags

NGSS.HS-PS1-5

This is the type of collisions in which a reaction occurs. It brings a change in the chemical reaction, the concentration of the product.

• Effective Collisions

• Successful Collisions

• Efficient Collisions

• Direct Collisions

Jak Robert O. decided to cook dinner for his family. He got all of the ingredients and cooked them on the stove. He put the fire on "high" to cook his food faster.

What kind of factor affecting the rate of reaction is this?

• Concentration

• Temperature

• Surface Area

• Catalyst

Tags

NGSS.HS-PS1-5

Hana Song was drinking coffee when she decided to put in sugar to boost her energy. She observed that sugar cubes dissolved slowly while the granulated sugar dissolved quickly.

What kind of factor affecting the rate of reaction is this?

• Concentration

• Temperature

• Surface Area

• Catalyst

Tags

NGSS.HS-PS1-5

Jett is a chemist who is trying to create a chemical reaction. However, she faced difficulties when the reaction she had hoped for had not been achieved. She then inserted a new substance that lowers the activation energy of a reaction to produce the ideal reaction.

What kind of factor affecting the rate of reaction is this?

• Concentration

• Temperature

• Surface Area

• Catalyst

Spun G. Bob was conducting a science experiment in which he would put an aluminum ribbon in two flasks of chemicals (0.5 HCl and 2HCl). He discovered that dropping the ribbon in the 2HCl flask produced a much quicker reaction than in the 0.5 HCl flask.

What kind of factor affecting the rate of reaction is this?

• Concentration

• Temperature

• Surface Area

• Catalyst

Tags

NGSS.HS-PS1-5