Ch 1 Flashcards
1
Q
Observation
A
What you can see and notice
2
Q
Hypothesis
A
Educated Guess
3
Q
Experiment
A
a controlled way to test hypothesis
4
Q
Conclusion
A
results of the experiment
5
Q
States of Matter
A
Solid, Liquid, Gas
6
Q
Which has definite Shape
A
Only Solid
7
Q
Which has definite Volume
A
Liquid and Solid
8
Q
Homogeneous vs Heterogeneous
A
Homogeneous you can’t see a difference Heterogeneous you can
9
Q
Mixture vs Substance
A
Mixture is made up of substances, substances are made up of compounds
10
Q
6.434 x 10^4
A
64340
11
Q
.0004872
A
4.872 x 10^-4
12
Q
3.24554 x 10^-9
A
00000000324554
13
Q
Sig Figs in 4.09280
A
6
14
Q
Sig Figs in 30980
A
4
15
Q
Where is the Sig Fig? 365.4 + 2.375
A
Tens Place
16
Q
Where is the Sig Fig? (45.23 + 21.3)/23.62
A
Tens Place
17
Q
Giga
A
1000000000
18
Q
Mega
A
1000000
19
Q
Kilo
A
1000
20
Q
Hecto
A
100
21
Q
Deka
A
10
22
Q
Base
A
1
23
Q
Deci
A
.1
24
Q
Centi
A
.01
25
Mili
.001
26
Micro
.000001
27
Nano
.000000001
28
Density Formula
g/ml = g/v
29
Kelvin to Celcius
C = K - 273.15
30
Celcius to Farenheit
F = (91.8 x C) + 32
31
Element
can not be chemically broken down
32
Molecule
same elements chemically combined
33
Compound
different elements chemically combined
34
Mixture
more than 1 pure substance
35
Pure Substance
an element or compound
36
Ion
a charged group of atoms
37
Cation vs Anion
cation positive charge, Anion negative charge
38
Noble Gases
Group 18
39
Transition Elements
Central Block, Group 3 - 12
40
Metals
Down and Left of Metalloids, not H
41
Non Metals
Up and Right of Metalloids
42
Metalloids
The steps, not Al
43
Alkali Metals
Group 1
44
Alkaline Earth Metals
Group 2
45
How to Remember Diatomic Molecules
Henry Never Brings Open Flames In Clorine
46
Diatomic Molecules
H2 N2 Br2 F2 I2 O2 Cl2
47
Formula for Aluminum 1 Bromine 3
AlBr3
48
Formula for Calcium 1 Flouride 2
CaF2
49
Which elements are present in CS2
Carbon and Sulfur
50
Which elements are present in ClF
Chlorine and Flouride
51
How many atoms in (NH4)2Cr2O7
N - 2, H - 8, Cr - 2, O - 7
52
What is Copper
Pure Substance, Element
53
What is Soda
Mixture
54
What is Aluminum Oxide
Pure Substance, Compound
55
Physical Properties
characteristics where composition stays the same
56
Chemical Properties
ability of a substance to form new ones
57
Physical Change
composition stays the same
58
Chemical Change
composition changes
59
Law of Conservation of Mass
Mass doesn't change in chemical changes
60
Energy
capacity of Mass to do work
61
Potential Energy
stored energy
62
Kinetic Energy
energy of Matter to do motion
63
Calorie
amount of heat to change 1 g of water 1 degree C
64
Specific Heat
how much heat needed to change 1g of water 1 degree C
65
Law of Conservation of Energy
energy can't be created or destroyed
66
Reactants
starting substance
67
Products
produced substance
68
Chemical Properties
Flammability, Decomposition, Reactivity
69
Equation for Heat Capacity
J = g x j/gC x (Cfinal - Cstart)
70
Neutron
not charged subatomic particle
71
Proton
positively charged subatomic particle
72
Electron
negatively charged subatomic particle
73
Nucleus
central atom
74
Isotopes
a number with different number of neutrons
75
Mass Number
number of neutrons + protons
76
Atomic Number
number of protons in the nucleus
77
Dalton's Model
first model of the atom
78
What was Rutherford's Hypotheisis
The particles would go straight through the gold foil
79
What did everyone else think?
The plum pudding experiment. Protons in the atom and electrons spread throughout. So all particles would bounce right back.
80
What happened in Rutherford's experiment?
The particles went straight through, some bounced back and others veered off to the side
81
What did Rutherford Learn?
There was a small hard center in the middle, the nucleus. Most of the atom was just empty space. The nucleus was positively charged.
82
How was Rutherford's Experiment Done?
Fired small positively charged subatomic particles at a piece of gold foil. There was a ring around the foil that would spark up every time the particle hit it. They used that to mark where the particles were going.
83
Sublevel is S tier
1 sublevel
84
Sublevel in P tier
3 sublevels
85
Sublevel in D tier
5 sublevels
86
Sublevel in F tier
7 sublevels
