College Chemistry Quiz #1 (8.26.16.)
Unlock all answers in this set
Unlock answersquestion
Appearance changes but substances does not - Melting - Boiling - Breaking - Cutting - Dissolving
answer
Physical Change
question
Substance change (reaction) - Produces bubbles - Turns cloudy - Temperature change - Color change - Change in smell or taste
answer
Chemical Change
question
Pacific (Present) - left to right Atlantic (Absent) - right to left
answer
Significant Figures (General)
question
Go with the lowest number of significant figures
answer
Sig Figs Multiplication and Division
question
Estimated digit is always last Go with the closest number of estimated digits (If I have 14.72, 1.853, and 9.1, the significant figures goes to 9.1)
answer
Sig Figs Addition and Subtraction
question
How close the numbers are to the correct value
answer
Accuracy
question
How close the numbers are to each other
answer
Precision
question
Cannot become a law Why does something happen
answer
Theory
question
Something happens
answer
Law
question
True Value: 6.02 Measurements: 6.02, 6.03, 6.04
answer
Accurate and Precise
question
When converting, for example, m³ to cm³ always remember that the conversion between m and cm must happen 3 times
answer
Calculations
question
Density = M/V
answer
Density
question
1g
answer
1000 mg
question
1g
answer
100 cg
question
1g
answer
10 dg
question
1 Kg
answer
1000 g
question
1 cm³
answer
1 mL
question
1 L
answer
1000 cm³
