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spin [16.1K]
3 years ago
14

Which of the following is NOT a standard state? Group of answer choices For a solid, it is 1 atm. For a solid, it is 25°C. For a

liquid, it is 1 atm. For a liquid, it is 25°F. For a solution, it is 1 M.
Chemistry
1 answer:
miv72 [106K]3 years ago
8 0

Answer:

For a liquid, it is 25°F

Explanation:

The standard state for a liquid is 25°C

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Insoluble compounds in a chemical reaction are called?
Rzqust [24]
They are called precipitates. 
8 0
3 years ago
The change in speed that could occur in 4 seconds in an object with an acceleration of 6 m/s/s.
bazaltina [42]

Answer:

24m/s

Explanation:

a=change of v/change of t

6m/s^2=v/4s

multiply both sides by 4s

v=24m/s

4 0
2 years ago
Element X has a charge of +2 and Element Y has a charge of -1.
bekas [8.4K]

the chemical equation will be XY2

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2 years ago
What is the pH of 0.12M HNO3
Phoenix [80]

Answer:

pH= 0.92

Explanation:

HNO3-> H^+ +NO3^-

HNO3 is a strong acid, so it fully dissociates

[HNO3] = 0.12M    [H^+] = 0.12M  

pH= -log[H^+]

pH=-log[.12] = 0.92

pH = 0.92

4 0
3 years ago
When 412.5g of calcium carbonate react with 521.9g of aluminum fluoride,how many grams of each product can be produced
aliya0001 [1]
<h3><u>Answer;</u></h3>

321.8 g CaF2

321.5 g Al2(CO3)3

<h3><u>Explanation;</u></h3>

The equation for the reaction is;  

3 CaCO3 + 2 AlF3 → 3 CaF2 + Al2(CO3)3  

Number of moles of CaCO3 will be;

=(412.5 g CaCO3) / (100.0875 g CaCO3/mol)

= 4.12139 mol CaCO3  

Number of moles of AlF3 will be;

= (521.9 g AlF3) / ( 83.9767 g AlF3/mol)

= 6.21482 mol AlF3

But;

4.12139 moles of CaCO3 would react completely with 4.12139 x (2/3) = 2.74759 moles of AlF3.

Thus; there is more AlF3 present than that, so AlF3 is in excess, and CaCO3 is the limiting reactant.  

Therefore;

Mass of CaF2 will be;

(4.12139 mol CaCO3) x (3/3) x (78.0752 g CaF2/mol) = 321.8 g CaF2  

Mass of Al2(CO3)3 on the other hand will be;

(4.12139 mol CaCO3) x (1/3) x (233.9903 g Al2(CO3)3/mol) = 321.5 g Al2(CO3)3

3 0
3 years ago
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