3 years ago

A narrow black line at the base of a canyon is likely to be a

1 answer:

7 0

Not sure if I’m right, but it’s probably the water level where it started to become a drought, and it left lines.

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LekaFEV [45]

Covalent bonding!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

5 0

2 years ago

mel-nik [20]

(2) three fewer valence electrons is your answer.

6 0

2 years ago

vesna_86 [32]

Answer: The solubility of $Cd_3(PO_4)_2$ in water is $1.18\times 10^{-7}mol/L$

Explanation:

The balanced equilibrium reaction for the ionization of cadmium phosphate follows:

$Cd_3(PO_4)_2\rightleftharpoons 3Cd^{2+}+2PO_4^{3-}$

3s 2s

The expression for solubility constant for this reaction will be:

$K_{sp}=[Cd^{2+}]^3[PO_4^{3-}]^2$

We are given:

$K_{sp}=2.5\times 10^{-33}$

Putting values in above equation, we get:

$2.5\times 10^{-33}=(3s)^3\times (2s)^2\\\\2.5\times 10^{-33}=108s^5\\\\s=1.18\times 10^{-7}mol/L$

Hence, the solubility of $Cd_3(PO_4)_2$ in water is $1.18\times 10^{-7}mol/L$

6 0

3 years ago

grigory [225]

The answer is D I JUST TOOKM THE TEST

8 0

2 years ago

irga5000 [103]

D none of the above

4 0

2 years ago