To determine the amount of water to be added, we use the equation:
M1V1 = M2V2
where M1 and M2 are the concentrations and V1 and V2 are volumes. We calculate as follows:
2.00 (125) = 0.4(V2)
V2 = 625 mL
Water to be added = 625 - 125 = 500 mL of water
Hope this answers the question.
<span>A single-replacement reaction</span>
from google, so I think the answer to that question is the second one
If you mean carbs, then you don't eat as much pasta and bread and stuff like that. So practically, all of the good stuff. Use techniques. Tell yourself that it will make you thinner if you don't eat it. I also tell myself that I am stronger than this and that food shouldn't control me. It might or might not work for you.
Hope I could help!