Tuesday, March 5, 2013

Review of Chemistry

Chapter 1: Review Answers (pg 33)

1.
a. Independent variable is the quantity controlled in the experiment.
Dependent variable the quantity being measured or observed.
b.Variable is a quantity that changes in the experiment. have got
remains constant.
c. Control setup is the standard or current set of conditions, and
observational setup changes those conditions to make observations
on the changes in results.
d. Hypothesis predicts outcomes and attempts to apologize why.
Prediction just predicts outcomes.
e.A theory explains why sort happens, whereas a law describes
what happens.
f.Accuracy is presentting correct results consistently, whereas preciseness is
getting consistent results.
g.Clear means you can give away through it, whereas color-less means it
has no color.

2. Pictures will vary plainly should in general have:
a.Darts arrive in all over the place, no consistency
b.Darts landing in the alike general area, but that area is not the
bulls-eye
c.Darts landing in the bulls-eye consistently; doesnt necessarily have
to be the small same spot

3. a. Seconds, stopwatchb.

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Meters, meter stick
c. Liters, graduated cylinderd.Kilograms, balance

4.0.125 L5.8.256 mm6.2540 m

7.0.125 L8.0.8954 m9.0.000025 km

10.0.0785 dg

11.a.2d.4g.3j.4
b.2e.3h.1k.5
c.4f.3i.2

12.a.1.20 x 10 ge.1.30 x 10^-4 km
b.1.20 x 10³ gf.1.23 x 10?¹ s
c.1.950 x 10ºcmg.g. 2.00 x 10² g
d.2.00 x 10^4 mh.h. 4.57 x 10?³ L
13.a. 1.5 gc.126000 km
b.0.00125 md.0.010200 g
14.a.12.521 m + 1.29 m = 13.81 m
b.82.1 g 19.02 g = 63.1 g
c.1925 L + 1.034 L = 1926 L
d.20.1 g/L x 1.2 L = 24 g
e.15.75 L x 20.021 g/L = 315.3 g
f.12.2 g ÷ 1.9 g/L = 6.4 LIf you want to get a full essay, order it on our website: Orderessay



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