Answer:age could expect to live if current mortality trends were to continue for the rest of that person's life.
Explanation:
Answer:
Yes, the equation is balanced. There are the same number of Nitrogen (N) and Hydrogen (H) atoms on each side of the equation.
Explanation:
https://coachhyde.weebly.com/uploads/2/2/4/6/22469050/conservastion_of_mass_practice.pdf go to link if you ant more info
Their atoms are too tightly bonded to each other for them to be separated by a physical reaction
Answer:
d 2,4,3
Explanation:
2 Al2O3 ----> 4 Al + 3 O2
Answer:
195.199grams
Explanation:
Fluorine has a molar mass of 18.99984 while calcium has a molar mass of calcium is 40.08.
1 mole of calcium fluoride has a mass of 40.08+2×18.99984
=78.0797 grams
if one mole has a mass of 78.0797 grams, then 2.5 moles have:
2.5 moles× 78.0797 grams/mole= 195.1992 grams
