Show:
Basic Skills
The Atom
Compounds
Reactions
Mixtures
100

An educated guess

hypothesis

100

1.___________= positive charge

2.___________= negative charge

3.___________= neutral charge

1. proton

2. electron

3. neutron

100
If an atom gains an electron, it will become more ___________.

Negative

100

Matter cannot be created or destroyed during a chemical reaction. This is the Law of ______________________________.

Law of Conservation of Mass

100

A mixture or substance with a pH of 7 is ______.

Neutral

200

What is the correct measurement of liquid in this graduated cylinder? (include units)

27.0 mL

200
Atomic Number - Atomic Mass = Number of ________

Neutrons

200

When a magnesium atom forms an ion, it will have what charge?

+2
(Mg2+)

200

What are the big numbers in front of the elements/compounds called?

Example: 2H2O → 2H2 + O2

coefficients

200

A mixture with a pH between 0-7

A mixture with a pH between 7-14

Acid (0-7)

Base (7-14)

300

750 cm = _________ m

7.5 m

300

The same number of _____________ and ____________ makes an atom neutral

protons and electrons

300

The ions Ca²+ and Cl- combine.
What is the formula for the compound?

CaCl2

300

Classify the following reaction type:

NaCl + AgNO3 → NaNO3 + AgCl

Double-Displacement

300

 Coffee has a pH of about 5.
Coffee is a _______ ________.

a. weak acid
b. strong acid
c. weak base
d. strong base

a. Coffee is a weak acid

400

List all 3 base units of the metric system

meters
liters
grams

400

How many valence electrons does Arsenic have?

5

400

What is the name of CaCl₂?

Calcium Chloride

400

Classify the following reaction type

C6H18 +O2 → CO2 + H2O

Combustion

400

Name one thing that is produced from an acid and a base neutralizing.

Water
or
Salt

(Salt water is produced when an acid and base are mixed)

500

List 4 of the 6 steps of the scientific method in order

1. Ask a question

2. Conduct research
3. Form hypothesis
4. Experiment
5. Analyze results
6. Communicate results

500

The pictured atom is of what element?
(The gray particles are neutrons)

Beryllium (Be)

500
A metal and a nonmetal will form a(n) _________ bond.


Two nonmetals will form a(n) ___________ bond.

Ionic

Covalent

500

Balance the following equation

___C10H8 + ___O2 → ___CO2 + ___H2O

___C10H8 + _12_O2   →   _10_CO2 + _4_H2O

500

The ______ ions are associated with a base

The ______ ions are associated with an acid

Base --> OH- (Hydroxide)

Acid --> H+ (Hydrogen)