Chemistry, 03.10.2021 05:40 amariyanumber474
Significant notation with correct number of significant figures. a) 45.0 x 270
b) (6.43 x 10') / (1.7 x 10')
c) (2.215 x 10*) x (4.4 x 102)
d) 3,225 / (6.1 x 104)
e) 7 x (1.8 x 10)
f) 0.00734 / 10,450
g) 12.01x(6.02x10exponent 23). h) (1.24x10exponent24) / (6.02x10exponent23 i)6.70x10exponent-3x 2.54
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Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.
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Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g. what is the percent by mass of water in the hydrate? %
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Which change to the system wood cause the freely-moving piston to lower?
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Significant notation with correct number of significant figures. a) 45.0 x 270
b) (6.43 x 10') / (...
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