LEC 1&2&3
True or False
Chemistry is the study of matter and the changes that it undergoes
True
Energy is described as the ability to do ?
Work
What is the SI unit for Length
meter (m)
How many sig figs are in in the number
10500
3
What is the perimeter of a square if the length of a side is 2m
8m
The Scientific Method goes as following
Observation, Question, Hypothesis, Experiment, Conclusion, ?
Result
The temperature at which particle have very little to no motion is called?
(We can't reach this point)
Absolute Zero
The prefix nano- (n) refers to what number
10-9
How many sig figs are in the number
104.0300
Magnesium has a density of 9.810 g/mL. What mass will occupy 52mL
5.1 x 102 g
Science is about modeling and not establishing ?
Truth
Little Kinetic energy refers to which state of matter
Solids
Convert 15690 cm to m
1.569 x 102 m
What is
2.304 + 2094.1 +3.0983 - 1.11
2.0984 x 103
What is the length of a rectangle that has a perimeter of 434m and a width of 2hm
1.7 x 101 m
When separating mixtures a heterogeneous mixture of two liquid or a liquid and a solid can be separated by ?
Decanting
The sum of energy produced = Total energy consumed is known as what Law
Law of Energy Conservation (Law of Conservation of Mass-Energy)
Convert 1068dag to dg
1.068 x 105 dg
What is
201 x 9.309 x 0.03011
5.63 x 101
Give me the formula for finding the area of a trapezoid
A = 1/2 (b1+ b2)h
Out of balance atoms are called an ?
(electron added or taken away)
Ion
Convert 167F to K
348.15K
Convert 50.010pm to Mm
5.0010 x 10-17 Mm
Evaluation of the exactness of a measurement is called
Precision
Justin is walking by my desk and accidentally drops the golf ball he is playing with into my matcha. The my matcha was originally at 310.2mL and when the ball dropped in to the cup it went up to 405.9mL. What is the density of the ball if the mass is 1.02 hg
1.07 g/mL