Unit 3 Test Study Guide | Baamboozle - Baamboozle

English 26 Public

Matter and Energy

Study Slideshow

Folding paper, breaking glass, melting ice cream, and chewing food are all examples of what type of change?

Physical Change

5

Metal Rusting, Digesting food, Fireworks, and roasting marshmallows are examples of what type of change?

Chemical Change

5

Describe what happens during the following phase changes: Condensation and Evaporation

Condensation - Gas to Liquid; Evaporation - Liquid to Gas

15

State of matter that has a definite volume but not a definite shape is known as what?

Liquid

5

What are the two subatomic particles found in the nucleus of an atom and what are their charges?

Protons - Positive; Neutrons - Neutral (No Charge)

10

How many Protons, Neutrons, and Electrons does Lithium have?

Protons = 3; Neutrons = 4; Electrons = 3

20

What is Nitrogens atomic number? Atomic mass?

Atomic Number = 7; Atomic Mass = 14

15

Give at least 2 ways the periodic table is organized

Rows called Periods; Columns called Groups; Increasing atomic number; Valence Electrons

20

What determines the number of shells in a Bohr Model of an atom?

The period (row) of the element; For example, Hydrogen would have 1 shell

20

Describe or Draw a Bohr Model for Fluorine - Found in Period 2

Should have 9 protons and 10 Neutrons in the Nucleus; 2 electrons in shell 1 and 7 electrons in shell 2

25

NaCl (Sodium Chloride or Salt) is an example of what?

Compound

10

Describe the difference between a heterogenous and homogenous mixture? Give one example for each.

Heterogenous - particles are not evenly spread out - Ex. Pasta Salad; Homogenous - particles are evenly spread out - Ex. Air

25

Using the example of salt water, describe what a solution, solute and solvent are.

Solution - mixture that appears to be a single substance (salt water); Solute - what gets dissolved (salt); Solvent - substance that dissolves the solute (water

25

What is the difference between a molecule and a compound?

A compound has to be 2 or more DIFFERENT elements chemically bonded together

20

What is the term used for the left side of a chemical equation? Right Side?

Reactants and Products

10

Describe the Law of Conservation of Mass and how is it similar to the Law of Conservation of Energy

Both state that these cannot be created or destroyed they can only change forms

15