Chemistry, 26.02.2021 17:00 aurelio1121
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A rock that is exposed to heating and cooling over and over again will eventually crack and break into smaller pieces. This is an example of what type of mechanical weathering?
A. Abrasion
B. acid rain
C. ice wedging
D. biological weathering
Answers: 2
Chemistry, 21.06.2019 14:20
Calculate the enthalpy of the following reaction: 4 b (s) + 3 o2 (g) → 2 b2o3 (s) given the following pertinent information: (a) b2o3 (s) + 3 h2o (g) → 3 o2 (g) + b2h6 (g), δhoa = +2035 kj (b) 2 b (s) + 3 h2 (g) → b2h6 (g), δhob = +36 kj (c) h2 (g) + latex: \frac{1}{2} 1 2 o2 (g) → h2o (l), δhoc = −285 kj (d) h2o (l) → h2o (g), δhod = +44 kj
Answers: 3
Chemistry, 21.06.2019 20:30
The speed of light is around 6.706×10^8 miles per hour. what is the speed of light in units of miles per minute?
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For the following, determine the type of reaction and then give products.
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