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Answer:
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment. ... Protons and neutrons are bound together to form a nucleus by the nuclear force.
Explanation:
0.157 moles of Hg will be produced from 34.0 g of HgO.
<u>Explanation:</u>
2HgO → 2Hg + O2
Molar mass of HgO = 216.59 g / mol
34.0 g / (216.59 g / mol) = 0.156979 mol HgO
1: HgO: Hg = 1 coefficient ratio ( mol defense ) because ,
0.156979 mol HgO = 0.156979 mol Hg
= 0.157 mol of Hg.
.
Answer:
0.74M
Explanation:
Step 1 :
Data obtained from the question.
Initial concentration (C1) = 3M
Initial volume (V2) = 185mL
Final volume (V2) = 750mL
Final concentration (C2) =..?
Step 2:
Determination of the new concentration of the solution.
The new concentration of the solution can be obtained by using the dilution formula as shown below:
C1V1 = C2V2
3 x 185 = C2 x 750
Divide both side by 750
C2 = 3 x 185 / 750
C2 = 0.74M
Therefore, the new concentration of the solution is 0.74M
This type of compound represents ionic because there is a metal and a non-metal elements