What is the molecular formula if the molecular molar mass is 90.078 g/mol and the empirical formula is *
(1 Point)
CH20
C =
12.011 8
H = 1.0088
mol
0 = 15.9998
mol
mol
O C3H603
O C6H1206
C2H4O2
CH20

a galvanic cell( aka voltaic cell) and electrolytic cell

explanation:

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answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

the answer is option a.