Answer: 1. 3.914 × ^10-4 | 2. 4.781 × ^10-1
Explanation:
There are 2 significant figures
Astronauts brought back 500 lb of rock samples from the moon. How many kilograms did they bring back? (1 kg = 2.20 lb)
A. 500 kg
B. 1,100 kg
C. 498 kg
D. 227 kg
I believe it is D.
Answer:
b
Explanation:
What does lithium and chlorine make?
While not a normal route of preparation because of the expense, lithium metal reacts vigorously with all the halogens to form sodium halides. So, it burns with chlorine, Cl2, to form lithium(I) chloride, LiCl. 2Li(s) + Cl2(g) → 2LiCl(s)
