Author Question: Avogadro's number is A) 6.02 1023 B) 6.02 10-23 C) 3.02 1026 D) 2.06 ... (Read 60 times)

cdr_15 · **on:** Aug 27, 2018

Avogadro's number is

A) 6.02 1023
B) 6.02 10-23
C) 3.02 1026
D) 2.06 1032

Question 2

Removing sulfur dioxide as it is formed will ________.

2H2S (g) + 3O2 (g) = 2SO2 (g) + 2H2O (g)
A) shift the reaction to the right
B) shift the reaction to the left
C) have no effect
D) cannot be determined, since the temperature is unknown

Question 3

Which of the following postulates of Dalton's atomic theory has been modified in light of later discoveries?

A) All matter is made up of very small particles called atoms.
B) All atoms of an element are identical.
C) Chemical reactions involve rearrangement of atoms.
D) Compounds are formed from atoms.