Show:
Chemical Names and Formulas
Chemical Equations
Exo or Endo?
Energy Diagrams
Reaction Rate
100

What are the elemental symbols in the compound Nickel Oxide?

Ni and O

100

What are the chemicals on the left side of a chemical equation called?

Reactants

100

In exothermic reactions heat is ______

released

100

What is on the y-axis of an energy diagram

Potential energy

100
How will an increase in temperature affect the reaction rate?

It will increase the reaction rate.

200

What is the formula for Carbon tetrafluoride?

CF4

200

What type of reaction is this: 2 Al2O3 --> 4 Al + 3 O2

Decomposition Reaction

200

Is burning wood endothermic or exothermic?

exothermic

200

What does the x-axis of an energy diagram represent?

The progress of a reaction

200
How does an enzyme increase the rate of reaction?

It reduces the activation energy.

300
How many carbon atoms are depicted here: 3 (CH3CH2CH2CH3)2​​​​

24 Carbon atoms 

300

What 2 types of reactions will definitely produce water as one of the products?

Acid-Base Reactions and Combustion Reactions

300

Is boiling water endothermic or exothermic?

 Endothermic

300

In an endothermic reaction, how does the potential energy of the products and reactants compare?

The products will have higher potential energy than the reactants

300

Would you expect a square block of 100 atoms to react quicker or slower than 5 blocks of 20 atoms? Why?

Slower because they it has less surface area.

400

What is the name of the following compound: C3F8?

Tricarbon octafluoride

400

Write a balanced chemical equation for Aluminum and hydrogen monochloride reacting to produce hydrogen gas and aluminum chloride.

(you should be able to figure out how many aluminum and chloride atoms are in aluminum chloride)

2 Al + 6 HCl --> 3 H2 + 2 AlCl3

400

Plants creating sugar inside of them is a Exo or Endo thermic process?

Endothermic Process

400

How can you find the activation energy on an energy diagram.

Subtract the starting potential energy from the peak potential energy.

400

Beaker A contains 500 grams of a reactant in 500 ml of water. Beaker B contains 20 grams of a reactant in 10 ml of water. Which beaker would you expect to have a quicker rate of reaction and why?

Beaker B because the concentration of reactants is higher

500

What is the name of the following compound: Fe3As2

(you will not need to know As for the quiz)

Iron arsenide

500

Balance this chemical equation: C8H18 + O2 --> CO2 + H2O

(we will not give you something this big on the quiz)

2 C8H18 + 25 O2 --> 16 CO2 + 18 H2O

500

A substance has undergone an endothermic process. You find out that the temperature of this substance has increased during this process. Was the process a physical or chemical process? Explain why.

Physical. Because we are told it is endothermic and the substance has increased in temperature, meaning the substance has gained thermal energy from the surroundings. If a chemical process happened the temperature would decrease as thermal energy is transformed into chemical potential.
500
What is happening in the reaction during the upwards sloping part of the energy diagram? 

Bonds are being broken and thus absorbing energy.

500

What part of the chemical equation does the formula for an enzyme belong in?

An enzyme's chemical formula does not go in a reaction's chemical equation