Classmates
How many students are in this class?
36
Convert 15 meters to centimeters
1,500 cm
Is a single or double bond stronger?
Double bond
Where is the potential energy stored in a car?
In the fuel
True or False: Matter can be created or destroyed in a chemical reaction
False
How many table groups are there?
10
Convert 1,520 meters to kilometers
1.52 km
What is the difference between endothermic and exothermic reactions?
Endothermic reactions absorb energy while exothermic reactions release energy
What is the main difference between diesel and gas engines?
Spark plug
What is potential energy?
Energy from position
How many tickets do headphones cost?
5
How many centimeters are in 4.5 meters?
450 cm
Does breaking a chemical bond absorb or release energy?
Absorb
Which part of the car prevents NOx pollution?
Catalytic converters
How do we measure kinetic energy?
What time does this class end on early release days?
10:25am
You have a 2-liter bottle of soda. How many 250-milliliter cups can you fill completely?
8 cups
How does the number of shared electrons affect the bond energy?
The bond energy increases
Is combustion an endothermic or exothermic reaction?
Exothermic
Can you increase pressure to start a fire?
Yes
How many chemistry classes does Ms. Cassidy teach?
5
How many moles are in 45.0 grams of water?
2.50 moles
If a C-O bond's energy is 358 kJ/mol, how much energy does a C=O bond have?
799 kJ/mol
What are the inputs and outputs in an engine?
Input = O2 + C8H18
Output = CO2 + H2O
Why are we able to ignite diesel?
Diesel ignites through compression ignition