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What's it matter?
You're so dense
How will it react?
Random Review
Mix It
100
Define matter.
What is anything that takes up space and has mass.
100
The amount of stuff that fits in a certain volume.
What is Density.
100
This type of reaction is exemplified by wood being burnt.
What is a chemical reaction.
100

Define molar mass.

Molar mass is the sum of the mass of all the atoms found in one mole of a substance

100
Define heterogeneous mixture.
What is a mixture in which you can clearly identify 2 of more substances inside of it.
200
Name the positive and negative subatomic particles.
What is protons are positive and electrons are negative.
200
The equation for Density.
What is density equals mass divided by volume.
200
An example is mixing salt and water.
What is a physical reaction.
200

Define scientific notation.

a way to write very large or very small numbers as a product of a coefficient (a number between 1 and 10) and a power of 10

200
Compounds and elements are examples.
What is pure substances.
300
What are the chemical formulas for the compounds of Salt and Water?
What is NaCl and H20.
300
A piece of metal has the mass of 25 g and a volume of 13.5 mL. Calculate the density.
What is 1.85 g/mL.
300
Name two ways you know a reaction is chemical.
What is a new substance is formed, it cannot be undone.
300

What is a valence electron?

the electrons in an atom's outermost electron shell

300

Seperate into heterogeneous mixtures and homogeneous mixtures. -soda -sandwich -tea -koolaid -OJ with pulp

hetero- sandwich, OJ, homogeneous -tea, soda, and Kool-Aid.

400
Draw and label the parts (including charge) of an atom.
What is proton (positive) neutron (neutral) in the center, and electrons (negative) floating around in the electron cloud.
400
The density of a ball is 7.5 g/mL. If the mass of the ball is 450 g, calculate the volume.
What is 60 mL.
400
Seperate the physical and chemical changes: -burning paper -melting ice -baking a cake -mixing sugar water
What is physical is melting ice and mixing sugar water, chemical is burning paper and baking a cake.
400

Full name of H2O

What is dihydrogen monoxide?

400
Name 5 elements.
What is oxygen, carbon, hydrogen, sodium, chlorine, etc.
500
Name the three states of matter as well as an example of each.
What is solid (ice), liquid (water), gas (water vapor/clouds).
500
The length, width, height of a box is 4 x 5 x 4. The density is 1.4 g/mL. Calculate the mass.
What is 112 g.
500
As you chew your food (masticate) it breaks down in your mouth. Based on your knowledge of physical and chemical reactions/changes which one would this be?
What is chemical due to saliva helping chemically break down food.
500

What is Avogadro's number?

What is 6.022x10^23.

500
NaCl is an example.
What is a compound formula.