The closeness of a measurement to its actual value is a measure of its
a. usefulness.
b...
Chemistry, 21.08.2019 17:30 kaffolter25
The closeness of a measurement to its actual value is a measure of its
a. usefulness.
b. reproducibility.
c. precision.
d. accuracy.
Answers: 1
Chemistry, 22.06.2019 04:30
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.
Answers: 1
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The identities of substances are the same before and after which type of change
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When the mercury level in a barometer decreases that atmospheric pressure has
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Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
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