Hi can someone me with these ? how many molecules in the formula: 3 h2so4 how many al atoms in the formula: 2 al2(co3)3 how many total atoms in the formula: 3 mgbr2

1.)3
2.)4
3.)5
Hope helped you !!

•There are 3 molecules in the formula 3H2SO4

Explanation: H2SO4 is one molecule and the number 3 shows there are 3 molecules

•There are 4 Al atoms in the formula 2Al2(CO3)3

Explanation: It shows there are 2 molecules of Al2(CO3)3 and each of those molecules has 2 Al atoms, so in total there are 2x2 Al atoms= 4 Al atoms

•There are 9 Total atoms in the formula 3MgBr2

Explanation: There are 3 molecules of MgBr2 and each molecule has 1 Mg atom and 2 Br atoms = 3 atoms for each molecule. The 3 molecules have 3x3 atoms = 9 atoms

B"hf and f-"  is the correct answer took the test on edgenuity and got it right     

Idon’t know what the answer is i wish i could