Answer : The number of grams of calcium perchlorate is, 0.00253 grams.
Explanation :
Molar mass of calcium perchlorate = 238.9 g/mol
As,
formula units present in 238.9 g of calcium perchlorate
So,
formula units present in
of calcium perchlorate
Therefore, the number of grams of calcium perchlorate is, 0.00253 grams.
Answer:
1.88 x 10^5
Explanation:
You have to round because all of the numbers in 187515.4207 are significant
Round to: 188000
Put in scientific notation:
1.88 x 10^5
Answer:
B
Explanation:
Because element is made up of only one type of atoms and figure b show only one type of atoms.