Please help me with <span title="Chemistry!!!!!!!????????????!!!!!!!!!???????">Chemistry!!!!!!!?????????...</span>

Question

1. Calculate ∆Ho reaction (kJ) for the following reaction:

2H2O2 ( l ) → 2H2O ( l ) + O2 ( g ) (Points: 2)

-98.3

-196.6

+ 89.3

+ 98.3

2. Which of the following is the unit used for specific heat: (Points: 2)

joules/ grams x ml

joules/o C

joules/ ml

joules/grams xo C

3. How much heat is needed to convert 36.0 g H2O solid into a liquid at 0o C ?

(H fusion = 6.0 kj/mol) (Points: 2)

4.0 kj

8.0 kj

12 kj

16.0 kj

4. Predict the sign for ∆ So for this reaction: N2 (g) + 3H2 (g) → 2NH3 (g): (Points: 2)

+

–

no change

5. A + B → AB Rate = k [A]2 [B]

What is the overall order of this reaction? (Points: 2)

1st

2nd

3rd

4th

6. How are energy transfers in chemistry measured? (Points: 2)

heat

gas

pressure

Answer 1

me and my twin dont know any of thim ask a kid in your class

Answer 2

Ahem... do your own homework!!!