Chapter 1 Flashcards
1
Q
Matter
A
Solid liquid or gas
Anything that fills up space and has mass
2
Q
Matter can be divided in
A
Heterogenous matter and homogenous matter
3
Q
Heterogenous matter
A
Non uniform in appearance always a mixture of substances
4
Q
Homogeneous matter
A
Uniform in appearance but might be a mixture of
5
Q
Solution
A
Uniform mixture of substances and with widely variable compositions
6
Q
Pure substances
A
Fixed composition and cannot be further purified
7
Q
Element
A
Cannot be subdivided via chemical or physical means
8
Q
Compound
A
Cannot be subdivided via physical methods, elements in fixed ratios
9
Q
Giga G
A
10^9
10
Q
Mega M
A
10^6
11
Q
Kilo K
A
10^3
12
Q
Deci d
A
10^-1
13
Q
Centi c
A
10^-2
14
Q
Mili m
A
10^-3
15
Q
Micro u
A
10^-6
16
Q
Nano n
A
10^-9
17
Q
Pico p
A
10^-12
18
Q
Femto f
A
10^-15
19
Q
1x 10^9 nm is equal to
A
1m
20
Q
100cm=
A
10dm=1m
21
Q
10mm
A
1cm
22
Q
1000m=
A
1km
23
Q
1ml=
A
1cm^3
24
Q
1L=
A
1000 cm^3
25
1g=
1000mg
26
1 cal=
4.184 J
27
Error in measurement=
Experiment determined value-accepted value
28
% error=
(|Measured value- actual value|/ actual value )*100
29
The smaller the percentage error
The more accurate the value
30
V=
L*W*T
31
Density is equal to
d=m/v
32
Sig fig adding and subtracting
Equal to the smallest number of decimal
33
Sig fig multiplication and division
Answer is determined by the number with the fewest sig fig
34
Decimal point
Count from left to right until you hit a non zero number all count after that
35
No decimal point
Count from right to left until you hit a non zero (everything after that counts)
36
Standard deviation formula
= |observed - accepted value|
