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Snowcat [4.5K]
4 years ago
15

According to Reference Table F, which of these

Chemistry
2 answers:
elena-s [515]4 years ago
8 0

Answer:- 3) Ca_3(PO_4)_2

Explanations:- From solubility rules, all compounds of alkali metals are soluble. K(potassium) is an alkali metal and so potassium carbonate, potassium acetate both are soluble in water.

Also, from the solubility rules, nitrates are soluble, so calcium nitrate is also soluble.

So, the least soluble one will surely be calcium phosphate and also from the solubility rules, phosphates are insoluble(expect of alkali metals and ammonium ion).

Hence, the right answer is 3) Ca_3(PO_4)_2 .

Andre45 [30]4 years ago
6 0
The answer is (3) Ca3(PO4)2, which is insoluble due to its attraction force between the particles being higher than its attraction force to water molecules.
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Which of the following measurements is equal to 150 dL?
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6 0
3 years ago
Suppose a gas starts with a volume of 4.52L, temperature of 23 C, and pressure of 102,00 Pa. If the volume changes to 4.83L and
ivanzaharov [21]

Answer:

The answer to your question is     P2 = 84.16 kPa

Explanation:

Data

Volume 1 = V1 = 4.52 L            Volume 2 = V2 = 4.83 l

Pressure 1 = P1 = 102 kPa        Pressure 2 = P2 = ?

Temperature 1 = T1 = 23°C      Temperature 2 = T2 = -12°C

Process

1.- Convert the temperature to °K

Temperature 1 = 23 + 273 = 296°K

Temperature 2 = -12 + 273 = 261°K

2.- Use the Combined Gas law to solve this problem

                  P1V1/T1 = P2V2/T2

-Solve for P2

                  P2 = P1V1T2 / T1V2

-Substitution

                  P2 = (102)(4.52)(261) / (296)(4.83)

-Simplification

                  P2 = 120331.44 / 1429.68

-Result

                  P2 = 84.16 kPa

8 0
4 years ago
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