What is the term for compounds with the same molecular formula, ...

[ARLKQ]

What is the term for compounds with the same molecular formula, but with different structural formulas?
 
  A) derivatives
  B) isostructures
  C) isotopes
  D) isomers
  E) none of the above

Question 2

In the laboratory, hydrogen gas is usually made by the following reaction: Zn(s) + 2 HCl(aq)  H2(g) + ZnCl2(aq)
 
  How many liters of H2 gas, collected over water at an atmospheric pressure of 752 mm Hg and a temperature of 21.0C, can be made from 3.566 g of Zn and excess HCl? The partial pressure of water vapor is 18.65 mm Hg at 21.0C.
  A) 0.0975 L
  B) 1.30 L
  C) 1.33 L
  D) 1.36 L

Question 3

Which of the following is a base unit and symbol in the metric system?
 
  A) meter (m)
  B) gram (g)
  C) liter (L)
  D) all of the above
  E) none of the above

[nathang24]

Answer to Question 1

D

Answer to Question 2

D

Answer to Question 3

D

[ARLKQ]

TYSM

[yeungji]

Thanks for the timely response, appreciate it