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Calculations
Mystery
Exothermic vs Endothermic
100
Calculate the density of an object with a mass of 20 g and a volume of 15 mL.
1.3 g/mL
100
2394 mL are equal to how many cubic centimeters?
2394 cm3
100
Fireworks exploding
What is exothermic change?
200
Calculate the volume of a liquid that fills up 34 mL in a graduated cylinder.
34 mL
200
The density of wood is 0.8 g/cm3. Will this sink or float?
Sink
200
Ice melting
What is endothermic change?
300
Calculate the volume of a rectangular object with dimensions of 13x4x5 cm
260 cubic centimeters
300
The density of gold is 19.3 g/cm3. Will sink or float?
Sink?
300
Making an ice cube.
What is exothermic energy?
400
A small block weighs 7 grams. It has dimensions of 4 x 4 x 4. Calculate the density
.109 g/mL
400
Density 1 - 14.6 g/cm3 Density 2 - 1.0 g/cm3 Density 3 - 0.49 g/cm3 Density 4 - 7.3 g/cm3
Density 3 Density 2 Density 4 Density 1
400
Heat is released or given out.
What is exothermic energy?
500
Calculate the density of an object: 16 g 4 mL
What is 4 g/mL
500
The Statue of Liberty is a great example of this chemical change.
What is oxidation?
500
Heat is absorbed or taken in.
What is endothermic energy?