a. only changes of state
Chemistry, 29.08.2019 23:50 kkeith121p6ujlt
Which types of changes observe the law of conservation of mass?
a. only changes of state
b. only physical changes
c. only chemical changes
d. all of the above
Answers: 1
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In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 4.20 mol fe and 6.70 mol nio(oh) react?
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Which types of changes observe the law of conservation of mass?
a. only changes of state
a. only changes of state
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