[peace*out]

*X* if X is a number, that means it's subscript

EX: F *2* + S --> SF *6* becomes 3F *2* + S --> SF *6*

There's only one I can't get:

AlBr*3* + K*2*SO*4* --> KBr + Al*2*(SO*4*)*3*

anyone?

[Guest]

1. get the Br's to equal

2. get the SO*4*'s to equal

3. get the Al's to equal

4. get the Br's to equal once more

5. the K's shall now be equal

does that help?

Edited May 13, 2010 by starfreak

[Guest]

Just so you know, you can put subscripts in posts. Ex:

O{sub}2{/sub} becomes O₂ when you replace {} with []

I would have helped with the problem, but sf's already got you covered with the order of Bromine-Sulfate-Aluminum-Bromine. I'm confirming that's right, and pointing the sub code out to you for future reference.

[peace*out]

yep! thanks! :D

EX: F₂+S --> SF₆ becomes 3F₂+S --> SF₆

There's only one I can't get:

AlBr₃+K₂SO₄ --> KBr+Al₂(SO₄)₃

there we go...

Edited May 13, 2010 by peace*out

[Guest]

I'm almost done with my science homework, but i need help with some of the questions [they're multiple choice].

1) the element ____ is always found in nature combined with other elements.

[a] copper gold [c] magnesium [d] silver

2) the least magnetic of these metals is ____.

[a] cobalt iron [c] nickel [d] titanium

3) when neptunium atoms fall apart, they form ____.

[a] ytterbium promethium [c] americium [d] plutonium

4) an example of a radioactive element is ____.

[a] astatine bromine [c] chlorine [d] fluorine

5) the only group that is completely non-metallic is Group ____.

[a] 1 2 [c] 17 [d] 18

thank youu!