1. How would you synthesise chromyl chloride (CrO2Cl2)? What precautions might you take? Is it likely to be a liquid or a solid at ordinary temperatures, and what is its likely colour?

2.CaF2 has a Ksp = 3.8*10^-11 at 25°C. What is the [F-] in a saturated solution of CaF2 at 25°C?

3.E° = 0.93 V for the reaction Fe(s) + 2M+(aq) >> Fe2+(aq) + 2M(s). The standard reduction potential is -0.41 V for the reaction Fe2+(aq) + 2M(s) >> Fe(s). What is the standard potential for M+ + e- >> M?

4. CuCNS+KIO3+HCl --> HCN+CuSO4+ICl+H2O+KCl . Balance this equation

there 16 more questions but i got them. i dont understand these four.
I hate my science teacher. Help me. Thank you.
8th grade sucks.

1.Don't know. Solid. Look it up.
2. How the hell are you expected to solve this question in 8th grade chem?! I took it in Ap chem. Anyways I need to refresh my memory Ill tell you later.
3. 1.34V
4. This is easy. You balance it.

balance it then. i keep getting it wrong. and thnx for #3. i cant find answers to #1. waiting for #2 if u can help.

the 2nd and 3r questions are AP level questions ...

help me plz.

Sorry Im a bit busy...isn't this HW?

Number 2
Make a chart and i think its gona be like x and 2x so you will get 2x^2=3.8*10^-11 or something like that. I forgot how to do these KSP. plus are you sure your 8th greade teahcer gave you this?

ask ur 8th grade teacher why the hell is s/he giving you college chem questions

he said this is not college chem and that we are gonna learn it this year or next year.

nobody in my class answered those four questions but the other question were also freikin hard but i used the text book.

Redwan wrote:he said this is not college chem and that we are gonna learn it this year or next year.

lol tell him hes retarded

KSP and solubility is from chem 2

i am gonna tell him, "my frnds on the internet think ur retarded."

Dude, this is AP Chem stuff. There's a problem if he's teaching you this. I asked a friend in Honors Chem and she didn't know at all. The balancing part is easy though, but that's all I would know.

yeah i am gonna tell my teacher tmrw.

if you asked me exaclty a year ago i would know

Lol your teacher is teaching you the wrong stuff and you'll fail the basic regents chem questions. At least you'll be ready for AP Chem lol

wait i am good with normal chem. so i am gud for chem regents

Really? But you just started the year...

i know but i am pretty good at it. i looked thru the book and i can do a lot. but i need to memorize a lil things. tahts all