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SCORPION-xisa [38]
3 years ago
7

Can someone help me im doing chemistry right now and I have a question which I have no idea how to solve and I need to show work

it it needs to be shown in scientific notation
(7.6x10^-1)+(2.0x10^-2)
Chemistry
1 answer:
dexar [7]3 years ago
6 0
The answer should be 0.78
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Answer :

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Molecular equation : It is defined as a balanced chemical equation where the ionic compounds are expressed in the form of molecules rather than component of ions.

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Part A  : potassium carbonate and lead(II) nitrate

The balanced molecular equation will be:

K_2CO_3(aq)+Pb(NO_3)_2(aq)\rightarrow 2KNO_3(aq)+PbCO_3(s)

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Part B : lithium sulfate and lead(II) acetate

The balanced molecular equation will be:

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The balanced molecular equation will be:

Cu(NO_3)_2(aq)+Na_2S(aq)\rightarrow 2NaNO_3(aq)+CuS(s)

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The balanced molecular equation will be:

Sr(NO_3)_2(aq)+2KI(aq)\rightarrow 2KNO_3(aq)+SrI_2(aq)

In this reaction, strontium iodide and potassium nitrate are soluble solution.

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