Chemistry, 04.02.2020 01:46 zeesharpe05
#1: the element that loses electrons in a chemical reaction is said to have been which of the following?
a. reduced
b. oxidized
c. combusted
d. rusted
**idk, is it reduced or oxidized? ?
which type of reaction occurs if one element gains electrons and another loses electrons?
a. combustion
b. synthesis
c. oxidation-reduction
d. double-displacement
**my c
#3: what is the oxidation number for phosphorus in h4p2o7?
a. +5
b. +3
c. +1
d. - 1
**my a. +5
#4: what is the oxidation number for phosphorus in na2hpo3?
a. +5
b. +3
c. +1
d. - 1
**my answer; b. +3
is that right? ?
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