How has the work of chemists affected the environment?
a. a single chemical can sometim...
Chemistry, 24.11.2019 09:31 alondrabdiaz586
How has the work of chemists affected the environment?
a. a single chemical can sometimes both hurt and the
environment.
b. the chemicals that chemists use can all be to the
environment.
c. the work of some chemists causes environmental problems,
while the work of others tries to fix problems.
d. all chemists use chemicals that are bad for the environment.
Answers: 3
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The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.
Answers: 1
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In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?
Answers: 2
Chemistry, 22.06.2019 22:10
Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water
Answers: 3
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