First read the introduction.
Seconds look at the pictures how to build it.
Answer:
3.74%
Explanation:
We express a solution's volume by volume percent concentration, % v/v,
Take the ratio of the isopropyl alcohol (IPA) volume to the total volume of the solution, which is 1800 mL of water+ 70 mL of IPA,
and multiply by 100 to get the percentage: 70/(1800+70) *100 = 0.0374*100 = 3.74%
Answer:
Protons
Explanation:
It's the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
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