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3 years ago

Why is sugar in tea a homogeneous rather than a heterogeneous solution

1 answer:

8 0

Tea is a homogeneous mixture as its composition is the same throughout. If you take one spoon of the solution and compare it to two spoons of the same solution, the composition will be the same. Also, the different components which make up a cup of tea cannot be observed individually. All the components mix up thoroughly.

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How many electrons are there in the following compound?

Marina86 [1]

Answer:

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Explanation:

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3 years ago

Wind power is:

12345 [234]

Answer) All of the above

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3 years ago

Read 2 more answers

The maximum amount of nickel(II) cyanide that will dissolve in a 0.220 M nickel(II) nitrate solution is...?

sweet [91]

Answer : The maximum amount of nickel(II) cyanide is $5.84\times 10^{-12}M$

Explanation :

The solubility equilibrium reaction will be:

$Ni(CN)_2\rightleftharpoons Ni^{2+}+2CN^-$

Initial conc. 0.220 0

At eqm. (0.220+s) 2s

The expression for solubility constant for this reaction will be,

$K_{sp}=[Ni^{2+}][CN^-]^2$

Now put all the given values in this expression, we get:

$3.0\times 10^{-23}=(0.220+s)\times (2s)^2$

$s=5.84\times 10^{-12}M$

Therefore, the maximum amount of nickel(II) cyanide is $5.84\times 10^{-12}M$

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3 years ago

Help!!!!

evablogger [386]

Answer:

!atoms in the nitrogen family.. have 5 valence electrons. They tend to share electrons when they bond. Other elements in this family are phosphorus, arsenic, antimony, and bismuth.

5 0

2 years ago

How many milligrams of a 20mg sample of cesium-137 remain after 60 years

andrey2020 [161]

Cs -137 has a half life of about 30 years. If 60 years pass, there is two half lives passed so 1/2 * 1/2= 1/4. Take 1/4 and multiply it with the mass given:
(1/4)*20mg=5mg left

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3 years ago