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In a closed or isolated system , matter can not be created or destroyed. it can change forms but is conserved true or false
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2points what is the job of a scientist? a. to answer ethical questions. b. to write laws based on his or her knowledge. c. to ask and answer scientific questions. d. to ignore facts that do not support his or her theory.
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What element has similar physical and chemical properties as boron.
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Chemistry, 23.06.2019 01:30
What happens to the concentration of hydronium ions as the ph of a solution increases? a. hydronium ion concentration stays the same b. hydronium ion concentration decreases c. hydronium ion concentration increases
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Which formula represents a nonpolar molecule?
(1) hcl (3) nh3
(2) h2o (4) ch4...
(1) hcl (3) nh3
(2) h2o (4) ch4...
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