+2, +1 is the charge of copper
Answer: The answer is Net Forces.
Net force is the vector sum of forces acting on a particle or body.
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0.0275x100.7= 2.8(approximately). 100.7-2.8=97.9grams
Im not sure but I think it’s the second one
The empirical formula of a compound is determined to be CH2O, and its molecular mass is found to be 90.087 g/mol. Determine the molecular formula of the compound, showing your solution.
Answer: This is actually quite simple, first we have to calculate the molar mass of empirical unit. Therefore we have 12+2*1+16 = 30. Then we solve 90/30 = 3. Finally we end up with 3*(CH2O) --> C3H6O3.
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