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Svetllana [295]
3 years ago
5

What other elements might you expect to have chemical properties similar to zinc❔

Chemistry
1 answer:
liubo4ka [24]3 years ago
5 0
Metal
transition metal
toxic heavy metal
period 4 element
group 12 element
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The electron dot diagram for an atom of carbon has how many pair(s) of electrons and how many unpaired electrons
krok68 [10]

Answer:

The resultant structure is shown below. This structure contains four shared pairs of electrons, which are located on all four "sides" of carbon's electron dot structure. Each of these shared pairs was created by pairing one of carbon's unpaired electrons with an unpaired electron from chlorine.

Explanation:

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2 years ago
A solution of HCl has mc012-1.jpg = 0.01 M. What is the pH of this solution?
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PH = -log10 [H+]. So anwer 2 pH
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How to balance reaction equations
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They will become unequivalent

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2 years ago
Calculate the average atomic mass of Mg if the naturally occurring isotopes are Mg - 24, Mg - 25 and Mg - 26. Their masses and a
Elenna [48]

Answer:

24.309

Explanation:

mass×percentage+.. = average amu

23.985×78.7/100+24.986×10.13/100+25.983×11.17/100

to three decimal places

=24.309

5 0
1 year ago
2Al + 3CuSO4–>3Cu+ Al2(SO4)3
sergiy2304 [10]

Answer:

7.82 g of Cu

Explanation:

2 moles of Al react to 3 moles of copper sulfate in order to produce 3 moles of copper and 1 mol of aluminum sulfate.

Firstly we determine the moles of reactant.

As copper sulfate is in excess, Al is the limiting.

2.75 g . 1mol /26.98g = 0.102 moles

Ratio is 2:3. 2 moles of Al, can produce 3 moles of Cu

So the 0.102 moles of Al will produce(0.102 . 3) /2 = 0.153 moles.

We convert moles to mass: 0.153 mol . 63.5g /mol = 9.71 g

That's the theoretical yield (100 % yield reaction)

We know that: (yield produced / theoretical yield) . 100 = percent yield

We replace:

(Yield produced / 9.71g) . 100 = 80.5  %

(Yield produced / 9.71g) = 0.805

Yield produced = 0.805 .  9.71g = 7.82 g

4 0
3 years ago
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