chemistry homework help needed!!!

[Khumar]

Re: chemistry homework help needed!!!

you're welcome :)

[Princess_Fiona]

Re: chemistry homework help needed!!!

Arghhhh i soo hate chemistry

[Aaana]

Re: chemistry homework help needed!!!

pick the name and formula that do not match
1.HBrO4 perbromic acid
2.H2PO4 phosphoric acid
3.H2CrO4 chromic acid

[Khumar]

Re: chemistry homework help needed!!!

2.H2PO4 phosphoric acid

[Aaana]

Re: chemistry homework help needed!!!

@Aaana

it is 26!
heres my next question…which of the following is false
1.the mass of protons and neutrons are about the same.
2.the mass of proton is much larger than the mass of electron.
3.the mass of electrons and neutrons are about the same.
4.the mass of hydrogen atom is about the same as a proton

i still need this one

[Aaana]

Re: chemistry homework help needed!!!

but i do know that its not 2..

[Aaana]

Re: chemistry homework help needed!!!

@Aaana

the difference b/w the mass # of an atom of an element and the atomic # of the element is always equal to: 1.the number of neutrons in the nucleus 2.the atomic number of the element. 3.the atomic mass unit. 4.6.02 X 10^23

and this one

[Khumar]

Re: chemistry homework help needed!!!

1.the number of neutrons in the nucleus.

sorry about the other one.

[Aaana]

Re: chemistry homework help needed!!!

i need 1 more answer..and then i am DONE..wow