1 year ago

NiSe2 + Ca3(PO4)2 = Ni3(PO4)2 + CaSe balance please

Chemistry

1 answer:

Aliun [14]1 year ago

8 0

3Ni + Sn3(PO4)2 → Ni3(PO4)2 + 3Sn I think. Not for sure though

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Likurg_2 [28]

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2 years ago

No I don’t have a question

Nikitich [7]

Answer:

then why'd you ask a question

Explanation:

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1 year ago

An oxidizing agent is reduced. an oxidizing agent is reduced. <br> a. True <br> b. False

Ilya [14]

B false i think, i may be wrong

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2 years ago

The side chain of histidine has a typical pKa value in the range of 6.5-7.4. However, when analyzing the pKa values in a particu

Leona [35]

Answer:

Statements 1 and 2 are correct.

Explanation:

The microenvironment around a amino acid residue can impact its pKa value according with the Born effect. If there is a positively charged environment, like in the second option, the pKa value will decrease, just as it happens in the histidine residue. So the correct answers are 1 and 2.

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2 years ago

Eleven molecules have speeds 15, 16, 17, . . . , 25 m/s. Calculate (a) vavg, and (b) vrms. Part a express your answer with the a

lora16 [44]

The speeds are

15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 m/s.

Vavg = 15 + 16 + 17 + 18 + 19 + 20 +21 +22+ 23+24+ 25 / total molecules = 20 m/s

Vrms = ((sum of square of speed of molecules ) / total molecules )^1/2

Vrms = ( (15^2 + 16^2 + 17^2 + ....25^2) / 11 )^1/2

= (225+ 256 + 289 + 324 + 361+ 400 + 441 + 484 + 529 +576 +625 / 11)^1/2

= (4510 / 11 )^1/2 = 20.25 m /s

7 0

2 years ago

Read 2 more answers