How many meters are there in one kilometer? A) 10-3 B) 10-2 ...

[Kikoku]

How many meters are there in one kilometer?
 
  A) 10-3
  B) 10-2
  C) 10-6
  D) 103
  E) 106

Question 2

According to the following balanced reaction, how many moles of NO are formed from 8.44 moles of NO2 if there is plenty of water present? 3 NO2(g) + H2O(l)  2 HNO3(aq) + NO(g)
 
  A) 2.81 moles NO
  B) 25.3 moles NO
  C) 8.44 moles NO
  D) 5.50 moles NO
  E) 1.83 moles NO

Question 3

When the prefix centi is used in the metric system, a fundamental unit of measurement is multiplied by what factor?
 
  A) 10-3
  B) 10-2
  C) 10-6
  D) 103
  E) 106

[pami445]

Answer to Question 1

D

Answer to Question 2

A

Answer to Question 3

B

[Kikoku]

Gracias!

[amcvicar]

Great answer, keep it coming