Chemistry, 05.03.2020 13:01 fansofboys
The most abundant elements in the universe are hydrogen and helium, but there are also small but significant amounts of heavier elements in stars and planets and in our own bodies. Where did these heavy elements originate?
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Chemistry, 22.06.2019 03:50
Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.
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Chemistry, 22.06.2019 10:30
Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand
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Chemistry, 22.06.2019 11:30
Determine the reaction and balance the following equations urgent due in the morning
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Chemistry, 22.06.2019 17:40
If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?
Answers: 1
The most abundant elements in the universe are hydrogen and helium, but there are also small but sig...
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