Which of the following is an aldehyde?
H H H
O A. H-C-C-C-
=0
07
31
H H H
H
H HH
O=o
O B. H-C-C-C
10_H
H HH
НІНІН
40
O C. H-C-C-C-c
10_CH
H H
Н
H HH
D. H-0_CLC
20
CH,
H
HH

Write and balance the chemical equation that represents the reaction of aqueous sulfuric acid with aqueous sodium hydroxide to form water and sodium sulfate. include phases.