Transcript Unit 1 Test Topics by Day

Unit 1 Test
Topics by Day
• Day 1 – Safety
– Look over safety contract
– Are all chemicals dangerous?
• Day 2 – What is Chemistry/Scientific Method
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What is Chemistry/Matter/Mass?
What are the branches of chemistry?
What is the Scientific Method?
What are the parts of an experiment?
Quantitative verses qualitative
• Day 3
– Theories verses Laws
– SI Units (what are the base units, remember
one is tricky)
– Dimensional Analysis
• Remember micro (μ), milli (m), centi (c), deci (d),
deca (da), kilo(k), and mega (M)
– Derived Units, especially density (D=m/V)
• Day 4
– Accuracy and Precision
• What’s what?
• Percent Error (|actual-experimental|/actual x 100)
• Day 5
– Sig Figs
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What makes them a sig fig (4 rules)
How many are in a number
Adding/Subtracting and Multiplying/Dividing
How to read equipment properly
• Day 6
– Equipment
• What is each piece of equipment called?
• What is a use for the equipment?
Day 7 and Day 8
• Classifying matter
– Atom, pure substance, elements, molecules,
compounds, mixtures
– Homogeneous verses heterogeneous
– Separating mixtures
– States of Matter
• Gasses, liquids, solids, plasma
• Phase diagrams (you will have to interpret and label,
not draw)
• Changing states names (know that picture well)
– Chemical verses physical
Also look over
Vocabulary
Reality Checks
Test Format (70 Questions, all of
them have choices)
59 Multiple Choice (breakdown is below)
Safety
3
Significant Figures
7
Matter / Branches of Chemistry
3
Chemical Equipment
5
Scientific Method / Data Type
4
Reading Chemical Equipment
4
Dimensional Analysis / SI Units
7
Phase Diagram
4
Density
2
States of Matter
2
Precision/ Accuracy
4
Mixtures
5
% Error
2
Seperating Mixtures
2
Scientific Notation
2
Physical verse chemical
3
5 physical or chemical
6 phase diagram
Since it seemed like people struggled
most with significant figures, here are a
few practice problems
• How many significant figures are in the
following numbers:
a) 450500
e) 900000009
b) 0.0070220
f) 50000000.
c) 50000000
g) 9809200
d) 0.008102
h) 0.00000010000
a. 4 b. 5 c. 1 d. 4 e. 9 f. 8 g. 5 h. 5
Solve the following problems to the
correct number of significant figures
a) 6.78 x 103  2.2 x 104
b) 549 + 2.890 + 10.9
c) 0.000090040 x 5200
d) 89.000 – 8.90
e) 99.09 + 8.1 – 0.099
f) 56.000 x 1000
g) What is the density of a 150 mL liquid that has a
mass of 58.99 g to the correct number of
significant figures?
a) 0.31 b) 563 c) 0.47 d) 80.10 e) 107.1 f) 60000 or 6 x 104 g) 0.39 g/mL