Chemistry, 05.11.2019 15:31 hardyfombu
Coal is a fossil fuel which is used to produce electricity. which of these statements best describes an outcome of coal mining on the region around the mines?
it gets abundant electricity.
it becomes rich in minerals.
its groundwater is contaminated.
its rivers and streams become dry.
Answers: 3
Chemistry, 21.06.2019 13:50
The electron configuration for chromium is 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 5 4 s 1 instead of 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 4 4 s 1 . the configuration is an exception to the
Answers: 3
Chemistry, 22.06.2019 13:30
How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123
Answers: 1
Coal is a fossil fuel which is used to produce electricity. which of these statements best describes...
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