B
Explanation:
I rember when I learned this in 3rd grade
Answer:
10.5
Explanation:
well we added together so thats the result
Answer:
The number of particles in the 41.8g sample of Bismuth is 12.044 × 10²³
Explanation:
There are 1,000m is 1k. So just move the decimal one position right. 127.56m
There are 10,000cm in 1k. Move the decimal two positions right. 1275.6cm