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Jlenok [28]
3 years ago
6

What is the % of each element in Ni3{PO4) 2 ?​

Chemistry
1 answer:
Ilya [14]3 years ago
7 0

Answer:

nickel 48.1063%

Phosphorus 16.9245%

Oxygen 34.9692%

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Which of the following is an expression of Charles's law?
HACTEHA [7]

Answer:

C.

Explanation:

V/T

4 0
3 years ago
Wich has a larger percent by mass of sulfur - H2SO or H2S7O8?
Pie

Answer:

Explanation:

H2SO4 let S be x

2(1) + x + 4(-2) = 0

2 + x - 8 = 0

x - 6 = 0

x = 6

For H2S7O8 let S be x

2(1) + 7(x) + 8(-2) = 0

2 + 7x - 16 = 0

7x - 14 = 0

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x = 14/7

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:- H2SO4 as the larger percentage

5 0
3 years ago
Discribe how continents and oceans are carried on tectonic plates
Vanyuwa [196]
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7 0
3 years ago
1. Agriculture most likely began
777dan777 [17]

Answer:

Option D - 10,000 years ago in the Middle East

4 0
3 years ago
If 28 ml of 5.8 m h2so4 was spilled, what is the minimum mass of nahco3 that must be added to the spill to neutralize the acid?
ipn [44]

First we have to refer to the reaction between the acid and the base: <span>

H2SO4 + 2 NaHCO3 ---> 2 H2O + 2 CO2 + Na2SO4 

From this balanced equation we can see that for every 1 mol of acid (H2SO4), we need 2 mol of base (NaHCO3) to neutralize it. Given 28 ml of 5.8 M acid, we need to find out how many mols of acid that is: 

<span>28mL * (1L/1000mL) * 5.8 mol/L =  0.1624 mol H2SO4</span></span>

<span>
Since we need 2 mol of base per mol of acid, we need:</span>

<span> 2*0.1624 mol = 0.3248 mol NaHCO3 </span><span>

MolarMass of NaHCO3 is 84.01 g/mol 

<span>0.3248 mol*(84.01g/mol) = 27.29 g NaHCO3</span></span>

3 0
3 years ago
Read 2 more answers
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