Answer:
1,666,666 hours and 40 minutes
Explanation:
100000000÷60
Answer:
B
Explanation:
They compare the distance between the Earth and the sun to the distance between the Earth and the black hole
Answer:
We know based on the charges of each ion and the fact that they must always sum to 0
Explanation:
Na only has one outer electon to give so it is always +1
Mg has two outer electrons so it always gets +2
Halogens have one "missing" electron in their outer shell so they get a -1
For NaCl (+1) + (-1) = 0
For MgI2 (+2) + 2(-1) = 0