Answer:
The control in this experiment is the temperature and amount of water.
Explanation:
This is because for it to be a fair test the temperature and the amount of water need to be the same so they would both evaporate if there was no air being blown. Ask me if you would like me to elaborate on this.
I think the 3 indicates the number of molecules
An Atom can not be further brocken down
Answer:
0.70 M
Explanation:
- Molarity is the concentration of a given solution in moles per liter.
- Molarity is given in moles per liter of solution.
- It is calculated by dividing the moles of solute by the volume of solution.
In this case;
We are given;
Number of moles of HCl = 3.5 Moles
Volume of solvent, H₂O is 5.0 L
But, 
Therefore;

= 0.70 M
Thus, the molarity of the solution is 0.70 M or 0.70 moles/liter