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liraira [26]
3 years ago
7

Which of the following compounds is usually

Chemistry
1 answer:
goblinko [34]3 years ago
8 0
The answer is C which is PbSo
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Which of the 3 sub particles of an atom, weighs the LEAST?
zheka24 [161]

Answer:

Electron, as it carries a negative charge

Explanation:

8 0
3 years ago
Heat being transferred from a hot pan to our food while cooking is an example of... *
stellarik [79]

A.conduction  i hope it helps

6 0
3 years ago
Consider the insoluble compound cobalt(II) hydroxide , Co(OH)2 . The cobalt(II) ion also forms a complex with ammonia . Write a
Nuetrik [128]

Answer:

4.56×10^-10

Explanation:

Co(OH)2(s)<------->Co^2+(aq) + 2OH^-(aq)

Co^2+(aq) + 6NH3(aq) ---------->[Co(NH3)6]^2+(aq)

Overall equation:

Co(OH)2(s)+ 6NH3(aq) ---------->[Co(NH3)6]^2+(aq) + 2OH^-(aq)

The increased solubility of the cobalt salt in the presence of ammonia is as a result of the formation of the hexammine cobalt II complex shown above.

Knet= Ksp×Kf

Ksp of Co(OH)2= 5.92 × 10^-15.

Kf= 7.7 x 10^4

Knet= 5.92 × 10^-15 × 7.7 x 10^4

Knet= 4.56×10^-10

Note Knet is the equilibrium constant of the overall reaction.

7 0
4 years ago
3. Which of the following can be physically separated?
iren [92.7K]

Answer:

mixture

Explanation:

an example of one is a salad you can separate the ingredients

4 0
3 years ago
A gas has a volume of 7.0 L and a mass of 8.50 X 109 grams. What is its density in g/ml?
natka813 [3]

Answer:

The answer is

<h2>1, 214, 285.71 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass of gas = 8.5 × 10^9 g

But 1 L = 1000 mL

So 7 L = 7000 mL

volume = 7000 mL

So the density of the gas is

density =  \frac{8.5 \times  {10}^{9} }{7000}  \\  = 1214285.714285...

We have the final answer as

1, 214, 285.71 g/mL

Hope this helps you

8 0
4 years ago
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