according to the law of conservation of matter, we know that the total number of atoms does not change in a chemical reaction and thus mass is conserved. the reactant in this model is hydrogen peroxide. hydrogen peroxide decomposes to produce water and oxygen gas. how many water molecules must be added to complete this model?
a) a
b) b
c) c
d) d
Answers: 2
Chemistry, 22.06.2019 19:40
Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests.which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory
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Chemistry, 22.06.2019 20:00
State one important difference between a physical change and a chemical change?
Answers: 1
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Ok, so i have 2 questions. try to answer them both: (the topic is fire) 1) how can you represent the chemical reaction of fire? 2) what kind of bond is formed in this chemical reaction
Answers: 3
according to the law of conservation of matter, we know that the total number of atoms does not chan...
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