Oxygen had 6 valence electrons
Answer:
43.7
Explanation:
mole is equal mass concentration/ moler mass of MgCl²
B, millimeters because paper is really thin therefore it'd require small measurements for units.
Answer:
47.8 g
Explanation:
Remember the equation for percent yield:
% yield = actual / theoretical
We're given two of the values in the question, so plug n' play:
0.945 = 45.2 / theoretical
theoretical = 47.8 g
Keep in mind you can use mass here without converting to moles because we're working with products only. If you were given a mass of reactants, you would need to convert to moles and using a balanced chemical equation find the corresponding moles of product produced.