Substance or Not
Physical or Chemical
Density
Chemical Equations
Energy
100
Distilled water is an example of this.
What is a pure substance (or compound)?
100
Combustion is an example of this.
What is Chemical Reaction?
100
Does not change in a pure substance regardless of mass or volume.
What is density?
100
The type of reaction that absorbs energy. Can usually be seen as a drop in temperature of the products.
What is an endothermic reaction?
100
Stored chemical energy in food can become this when burned.
What is thermal energy?
200
Salt water, salad, and kool-aid are all example of this.
What is a mixture?
200
Freezing, boiling, and condensation are all examples of this type of change.
What is a physical change?
200
Can have varying scales up the side; some examples include lines for every 1mL, every 0.2mL, or even every 10mL.
What is a graduated cylinder?
200
The law that states matter can not be created or destroyed.
What is The Law of Conservation of Mass?
200
Breaking chemical bonds results in this.
What is a release of energy?
300
Two elements chemically combined
What is a compound (or molecule)?
300
Releasing a gas is a sure sign of this.
What is a chemical reaction?
300
mass (g) / volume (mL)
What is calculating density?
300
The product of a reaction between TWO sodium (NA) atoms and ONE dichlorine (Cl2) molecule.
What is TWO sodium chlorides (or Salt or 2NaCl)?
300
The measure of the speed of particles within a substance.
What is temperature?
400
A compound is an example of this.
What is a pure substance?
400
You can not easily, if ever, get back the product of this.
What is a chemical reaction?
400
The unit of mL can also be written as this (or is equal to this).
What is centimeters cubed?
400
A reaction or change that releases heat is termed this.
What is exothermic?
400
Their is more energy in the chemical bonds of fat than this.
What are carbohydrates OR protein OR fruits/veg?
500
Converting a pure substance into a mixture requires this type of change.
What is a physical change?
500
The color change in a ripening banana is because of this type of change.
What is a chemical change?
500
Even though mass remains the same, this changes in accordance to gravity.
What is weight?
500
Water boiling can not be expressed by this.
What is a chemical equation?
500
This famous equation states that energy can become matter and visa versa.
What is E=mC2
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