[dinamiciv]

http://i755.photobucket.com/albums/xx195/ArcheriIV/studyguidechoice.png

I've been doing this pre-test, practicing and I want to see if my answers are correct.

54.A
55.C
56.A
57.B
58.C
59.C
60.A
61.D
62.C
63.D
64.D
65.A
66.D

[Borek]

First is already wrong. Show what you did.

[dinamiciv]

First is already wrong. Show what you did.

54. 33.6 divided by 22.4 =1.5 X 6.02X10^23= 9.03X10^23= B
55. 10/10 X 20= 20= A
56. C = all balanced I double checked.
57. 1.8 divided by 2 X 10=90% = B
58. 0.0774 X 123= 9.5202= B
59. A (block is a conductor of heat
60. 2X 184.8 rounded to 185= D
61. C
62.A
63.A, stirring doesn't have to do with anything.
64.A (most confusing question)
65.C
66.D , because he is in the same group.

[Borek]

55 - wrong, T should be not 10°C.
58 - wrong, you should take stoichiometry into account.
59 - answer is right, but your explanation is unrelated.
60 - wrong, you don't pay attention to the stoichiometry again.

Second half is unreadable, besides, we are not HW checking service.