Appedix 1

Question 1

Chemistry

Answer 1

The study of matter and its interactions.

Question 2

Matter

Answer 2

Anything that has mass/ takes up space. Has a volume.

Question 3

Scientific Method

Answer 3

1. Propose a hypothesis. 2. Test the hypothesis. 3. Refine the hypothesis.

Question 4

Physical + chemical properties

Answer 4

Describe the physical state of matter/ can be observed w/o changing the substance’s chemical identity.

Example: Color, shape, and density.

Question 5

Chemical properties

Answer 5

Describe how matter interacts with other matter or other energy/ can only be established/ observed by changing the substance’s chemical identity.

Question 6

Phases of matter (solid)

Answer 6

Shape: Defined Volume: Defined

Question 7

Phases of matter (liquid)

Answer 7

Shape: Undefined Volume: Defined

Question 8

Phases of matter (Gas)

Answer 8

Shape: Undefined Volume: Undefined

Question 9

Rules of determining sig figs

Answer 9

All non-zero digits are significant.
All zeros below significant digits are significant.
Zeros whose only purpose is a placeholder are not significant.

Question 10

She wants us to know.

Answer 10

milli, centi, micro, kilo, mega, and Density = M/V

Question 11

Conversion Factors

Answer 11

Fraction/ ratio used to convert one unit from another

Question 12

Atomic Theory

Answer 12

All of the elements on (P.T) are composed of Atoms.

Question 13

Atomic Number

Answer 13

Z = number of protons in the nucleus

Question 14

Mass #

Answer 14

A = the number of protons and neutrons in the nucleus.

Question 15

Isotopes

Answer 15

Atoms with the same number of Protons but different numbers of neutrons.

Question 16

Molecules

Answer 16

It is a combination of at least Z atoms to form a substance. Think of ice-cold beer.

Question 17

Compound atoms to form a substance.

Answer 17

1s2
2s22p6
3s23p63d10
4s24p64d104f14
5s25p65d105f14
6s26p66d106f14
7s27p67d107f14
8s28p28d108f14

Question 18

Chemical Bond

Answer 18

It is a strong interaction between two atoms. Formed via interactions between electrons.

Question 19

Valence electrons

Answer 19

Sand P electrons in the highest energy level.

Question 20

Octet Rule

Answer 20

Atoms tend to react so that their outer shell of (valence) e- (step) has 8 e-.

Question 21

How can atoms get a full outer shell (octet)

Answer 21

Form chemical bonds:
Covalent: Share e’s b/w atoms.
Ionic: Transfer e’s b/w atoms

+ charge overall - Cation
- charge overall - anion