Which of the following is a balanced chemical equation?
A H,0,– H40-0,
B. 2Fe:0, +3C 4Fe + 3C0,
C. $0 +0+ 2H,0 + 4H SO.
D. 2 Mg + HCl → MĘCl + H,

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

Why is silver chloride is an ionic compound

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?