To calculate moles from grams using chemical formulas ... However, one mole of magnesium weighs 24.31 g. ... 0.873 g x 95.21 g = 9.17 x 10-3 mol MgCl2.
Answer:
Group 1
because they have just one valance electron, group 1 elements are very reactiv.
A. -20kj
Explanation:
The reaction is exothermic
therefore enthalpy = 20 - 40 = -20
Answer: n∗R=22+273.15/4.2∗5n
P2=n∗R∗T2/V2=n∗R∗33.6+273.15/10
Explanation:
