Which value is closest to the mass of a 2-pound box of laundry ...

[colton]

Which value is closest to the mass of a 2-pound box of laundry detergent?
 
  A) 200 g
  B) 2.0  10-4 cg
  C) 9  109 mg
  D) 1 kg
  E) 4.5  103 ng

Question 2

What is the total volume of the mixture of hydrogen gas and oxygen gas can be obtained from the electrolysis of 110.0 grams of water at 25.0C and 1.00 atm pressure according to the chemical equation shown below?
 
  2 H2O(l)  2 H2(g) + O2(g)
 
  A) 74.7 L
  B) 149 L
  C) 224 L
  D) 447 L

Question 3

Identify the ion with a -2 charge.
 
  A) phosphate
  B) chlorate
  C) chromate
  D) ammonium

[Jevvish]

Answer to Question 1

D

Answer to Question 2

C

Answer to Question 3

C

[colton]

Thanks

[Jevvish]

Welcome