I need the number and identity of each molecule/atom in the following formulas?

Question

HNO3

(NH4)2SO4

Br2

CuSO4 5H2O





the numbers are all the little ones, ya know?
if you could tell me how to do them too that'd be GREAT.


:)

Answer 1

HNO3 contains 1 Hydrogen, 1 nitrogen and 3 oxygens

(NH4)2SO4 contains 2 nitrogens, 8 hydrogens, 1 sulfur and 4 oxygens

Br2 contains 2 bromines

CuSO4*5H2O contains 1 copper, 1 sulfur, 9 oxygens and 10 hydrogens

Answer 2

break down the compound into individual elements. hydrogen weighs 1.01 g/mol. nitrogen weighs 14.01 g/mol. oxygen weighs 16.00 g/mol. look up the value of bromine's molecular mass in g/mol, as well as coppers, because i forget them. the first compund, composed of hydrogen nitrogen and 3 oxygens, is called nitric acid. (1x 1.01) + (1 x 14.01) + (3 x 16.00)= 63.02 g/mol. which is most likely the number that your teacher wants. Br2 is just simply elemental bromine. there is an acronym for knowing which elements are naturally dimolecular. HNOF down is the acronym. meaning H, N, O, F and down under F, are all dimolecular elements. CuSO4 5H2O is called Copper (II) Sulfate pentahydrate. anything followed with a . H2O is called a hydrate, and the coefficient that comes before it is the prefix, e.g. 5=penta.

Answer 3

HNO3: Nitric acid which has one hydrogen (H), one nitrogen (N) and three oxygen atoms (O).

Br2: elemental Bromine which is comprised of two bromine atoms

CuSO4.5H2O: Copper Sulfate Pentahydrate. The Hydrated salt has a single copper atom (Cu), single Sulfur atom (S), nine total oxygen atoms (O), and ten total hydrogren atoms (H)

Answer 4

it extremely is through bonds between 2 carbons. Carbon can form 4 bonds. In C2H6, 2 carbons have a unmarried bond and so, there will be 3 greater bond formations of Carbon with hydrogen. So, 3*2= 6 In C2H4, it extremely is a double bond between 2 carbons and so, there will be 2 bond formations of each and every Carbon with hydrogens. So, 2*2= 4 I?n C2H2, it extremely is a triple bond formation between Carbons and so, there will be one bond formation of each and every Carbon with Hydrogen. So, 2*2= 2 you are able to refer SP3, SP2, SP hybridization of atomic orbitals the place electrons exist for further information.