Answer:
0.125
Explanation:
no of moles = given mass / molar mass
no of moles = 7/
molar mass of calcium oxide = atomic mass of calcium + oxygen
molar mass = 40 + 16
molar mass = 56
no of moles = 7/ 56 = 1/8 = 0.125
Yeah you should be able to.
6*10^-3
Hope it helps
Procedure in the attached file
1. Land 2. open 3. broken 4. Lava matter 5. Force of the plates