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Science Foundations
Matter
Atomic Structure
Bonding
Reactions
100

List three things you should wear to protect yourself during chemistry labs.

answers may vary

safety goggles, lab apron, gloves, long pants, close-toed shoes, etc.

100

What are the two MAIN categories of matter?

substances and mixtures
100

The item on the periodic table that represents the number of protons is called the...

atomic number

100

What is the name for the compound K (OH) ?

Potassium Hydroxide
100

List the name for the parts of the chemical equation:

a. Elements/Compounds found on the left

b. Elements/Compounds found on the right

a. reactants

b. products

200

What is the name for the lab equipment used to powderize solid chemicals?

mortar and pestle

200

Determine if the following mixtures are homogeneous or heterogeneous:

a. saltwater

b. trail mix

a. homogeneous

b. heterogeneous


200

What charge does each subatomic particle have?

proton = positive

neutron = neutral (none)

electron = negative

200

What are the following numbers for each Roman numeral?

a. IV

b. VI

c. X

a. 4

b. 6

c. 10

200

What type of reaction is shown below?

A + BC --> AB + C

single replacement

300

Convert 23 cm to m.

0.23 m

300

A sheet of metal is 2 cm wide, 10 cm tall, and 1.5 cm tall. It has a mass of 42 grams. What is its density?

1.4 g/cm3

300
On the periodic table, rows are called (a) while columns are called (b).

a. Periods

b. Groups/Families

300

List the prefix for each of the following numbers:

a. One

b. Six

c. Nine

a. Mono-

b. Hexa-

c. Nona-

300

Balance the reaction below:

H2 + O2 --> H2O

2 H2 + O2 --> 2 H2O

400

Convert 75 ºF to ºC.

24 ºC

400

What are the other two states of matter (beyond solid, liquid, and gas)?

plasma and Bose-Einstein condensate

400

Draw a Bohr model for Oxygen (mass number = 16).

2 energy levels

-2 electrons in the first shell

-6 electrons in the second shell

-8 protons and 8 neutrons in the nucleus

400

What is the name for the compound B Br3 ?

Boron Tribromide

400

What type of reaction is shown in the below chemical equation?

2 C6H6 + 15 O2 --> 12 CO2 + 6 H2O

combustion

500

What is the difference between accuracy and precision?

accuracy = correct

precise = consistent

500

Aluminum has a density of 2.7 g/mL. When a piece of it is placed in a graduated cylinder with 11 mL of water, the water rises to 20 mL. Find the mass of the aluminum.

24.3 grams

500

If you know the atomic number, what two other pieces of information can you known in an electrically neutral atom?

protons

electrons

500

What is the name for this compound: Fe (NO3) 2 ?

Iron (II) Nitrate

500

Balance the following reaction:

N2 + O2 --> N2O5

2 N2 + 5 O2 --> 2 N2O5