Consider the following parent compound. CH3
СН3
HC
CHз

CH3
CH3
H3C
Н.
С
I
A
ор
Н
нн ннн
Which of the compounds shown are structural
isomers of this compound? Check all that apply.
ОА
сн,
сн.
Н. С
НАС
CH,
сн.
B
CH,
с
С
D
D

Asample of gas occupies 17 ml at –112°c. what volume does the sample occupy at 70°c a. 10.6 ml b. 27 ml c. 36 ml d. 8.0 ml you

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.