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Flashcards in Exam 1 Deck (49)
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1
Q

Theory

A

Summarizes a hypothesis that has been supported by repeated experimentation and is valid as long as there is no evidence to disprove it

2
Q

Scientific Law

A

The statement of a natural phenomenon were no exceptions are known under the given conditions

3
Q

Pure substance

A

Definite, fixed composition and either an element or a compound

4
Q

Mixture

A

Combination of two or more pure substances

5
Q

Zeros are significant when

A
  • Between nonzero digits (75.04)

- they are at the end of a number after a decimal point (33.140)

6
Q

Zeros are not significant when

A
  • they appear before the first nonzero digit (0.00321)

- when they appear at the end of a number without a decimal point (6920)

7
Q

Mega

A

M
1,000,000
10^6

8
Q

Kilo

A

k
1,000
10^3

9
Q

Deci

A

d
0.1
10^-1

10
Q

Centi

A

c
0.01
10^-2

11
Q

Milli

A

m
0.001
10^-3

12
Q

Micro

A

Mue
0.00001
10^-6

13
Q

Nano

A

n
0.000000001
10^-9

14
Q

1 Meter equals

A

100 centimeters
1000 millimeters
3.28 Feet

15
Q

1 kilometer equals

A

1000 meters

100,000 centimeters

16
Q

1 inch equals

A
  1. 54 cm

25. 4 mm

17
Q

Kilogram

A

kg
1000g
10^3 g
2.2015 pounds

18
Q

Gram

A

g
1g
10^0g

19
Q

Decigram

A

dg
0.1g
10^-1g

20
Q

Centigram

A

cg
0.01g
10^-2g

21
Q

Milligram

A

mg
0.001g
10^-3g

22
Q

Microgram

A

Mue g
0.00001
10^-6g

23
Q

Microgram

A

Mue g
0.000001 g
10^-6 g

24
Q

1 Liter equals

A

1000mL
1000cm^3
1.057 quarts

25
Q

Freezing point

A

0°C
32°F
273.15 K

26
Q

Boiling point

A

100°C
212°F
373.15 K

27
Q

Temperature equation

A

K=°C + 273.15

°F= 9/5(°C) + 32

28
Q

Density equals

A

Mass/Volume

Mass always grams
Vol always mL

29
Q

Periodic Table (1A)

A

+1

Alkaline Metals

30
Q

Periodic Table (2A)

A

+2

Alkaline Earth Metals

31
Q

Period Table (3A)

A

+3

32
Q

Period Table (5A)

A

-3

33
Q

Periodic Table (6A)

A

-2

34
Q

Periodic Table (7A)

A

-1

Halogens

35
Q

Periodic Table (8A)

A

Noble gases

36
Q

Diatomic Elements

A
Hydrogen- Have
Nitrogen- No 
Fluorine- Fear
Oxygen- Of
Iodine- Ice
Chlorine- Cold
Bromine- Beer
37
Q

Diatomic Elements (Hydrogen)

A

H
H2
Colorless gas

38
Q

Diatomic Elements (Nitrogen)

A

N
N2
Colorless gas

39
Q

Diatomic Elements (Oxygen)

A

O
O2
Colorless gas

40
Q

Diatomic Elements (Fluorine)

A

F
F2
Pale yellow gas

41
Q

Diatomic Elements (Chlorine)

A

Cl
Cl2
Greenish-yellow gas

42
Q

Diatomic Elements (Bromine)

A

Br
Br2
Reddish-brown liquid

43
Q

Diatomic Elements (Iodine)

A

I
I2
Bluish-black solid

44
Q

Ions (charged atoms)

A

Cation (+)

Anion (-)

45
Q

Physical Properties

A
Color
Taste 
Odor
State of matter 
Density 
Melting point
Boiling point
46
Q

Chemical properties

A

Reaction with another substance
Decompose
Form new substance

47
Q

Joule

A

Energy required to change the temperature of 1 g of water by 1°c

1 calorie= 4.184J
1kJ=1000J

48
Q

Specific heat equation

A

q=mC/\T

q is heat
m is mass
C is heat capacity
/\T is change in temperature

49
Q

Atomic Mass equation

A

(Atomic Mass • % abundance) + (Atomic Mass • % abundance) = amu