Which object is an insulator? A. Iron

B. Copper

C. Plastic

D. Salt water

c. plastic is an insulator

Explanation:

a and b are metals which are conductors and d contains water which is also a conductor

0.00 grams

Explanation:

To calculate the moles, we use the equation:

a) moles of sulphuric acid:

b) moles of sodium hydroxide:

According to stoichiometry :

1 mole of require 2 moles of

Thus 0.69 moles of require= of

Thus is the limiting reagent as it limits the formation of product and will be completely used and NaOH is the excess reagent.

Thus sulfuric acid will not be left over by the chemical reaction.