The chart is about atomic structure: at the top, the left box is "nucleus" and the right is "electron cloud".
On the left, under nucleus, the two boxes are: "protons" on the right and "neutrons" on the left. Under proton is elements which is given and under neutrons, it is "isotopes".
On the right, under electron cloud, the next box is "electrons" and then the lower box is "ions".
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
The name is sodium chloride. This is an ionic compound so you use the ionic naming system which is the name of the cation followed by the name of the anion. I hope this helps. Let me know if anything is unclear.
