Haha i’m trying to do the same one i’ll make sure if i find out how too to get back to you!
When a solute is completely dissolved in a solvent, a solution is formed.
Answer:
P2N5
Explanation:
you have to plus it 2 times
Vinegar is a mixture cause its composed of water and acetic acid.
<h3>
Answer:</h3>
7.502 kilo calories
<h3>
Explanation:</h3>
<u>We are given;</u>
- Quantity of heat, Q as 31.39 kJ
We are required to convert it to kilo calories
First, we convert it to Joules
1 kJ = 1000 J
Therefore;
31.39 kJ will be equivalent to 31390 Joules
Second we convert Joules to calories using a suitable conversion factor
The suitable conversion factor is 4.184 J/Cal
Thus;
31390 Joules will be equivalent to;
= 31390 J ÷ 4.184 J/Cal
= 7502.39 Cal
Third, we convert calories to kilo calories
1 kCal = 1000 cal
Therefore;
7502. 39 Cal will be equivalent to;
= 7502.39 ÷ 1000
= 7.50239
=7.502 kilo calories
Hence, 31.39 kJ will correspond to 7.502 kilo calories
