Answer: B
Explanation: I had an even lengthier explanation but Brainly is being a butthead. But I got it right on my test for those who want to know.
The SI unit of time in seconds
To convert the mass of a compound to formula units, the conversion factor is Avogadro's number, 6.022 x10^23 formula units/ mol and its molar mass. In this case, we are given with 19.0 grams of magnesium chloride which has a mass of 95.21 g/mol. Hence the answer is 1.20 x 10^23 formula units.
Answer:
D
Explanation:
They are renewable energy sources
