3. How many meters long is a 360 inches long extension cord?

9.144 meters.

Explanation: Formula: divide the length value by 39.37 , which yields 9.144.

Answer 1 : 5 moles of C can produces with 5 moles of A and excess B.

Explanation :

Given : Moles of A = 5 moles

The given hypothetical equation is,

From the given equation, we conclude that

As, 3 moles of A react to give 3 moles of C

So, 1 mole of A react to give 1 mole of C

and, 5 moles of A react to give 5 moles of C

Therefore, 5 moles of C produces with 5 moles of A and excess B.

Answer 2 : 1 mole of water can form.

Explanation :

Given : Moles of hydrogen gas = 1 mole

The given balanced reaction is,

From the given reaction, we conclude that

As, 2 moles of hydrogen gas react to give 2 moles of water

So, 1 mole of hydrogen gas react to give 1 mole of water

Therefore, 1 mole of water can form.