What represents a chemical collision?

Chemistry

1 answer:

bija089 [108]3 years ago

4 0

Answer:

Molecules must collide with the correct orientation and with enough energy to cause bond breakage and formation.

Explanation:

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Is the solution containing 0.20 M Pb2 and 0.10 M Cl (Ksp 1.6x105) a) saturated, b) unsaturated, c) at equilibrium, d) none of th

raketka [301]

Answer : The correct option is, (b) unsaturated

Explanation :

Ionic product : It is defined as the product of the concentrations of the ions present in solution raised to the same power by its stoichiometric coefficient in a solution of a salt. This takes place at any concentration. The ionic product is represented as, Q.

Solubility product constant : It is defined as the product of the concentration of the ions present in a solution raised to the power by its stoichiometric coefficient in a solution of a salt. This takes place at equilibrium only. The solubility product constant is represented as, $K__{sp}$ .

Now we have to calculate the ionic product of given solution.

The balanced chemical reaction is,

$PbCl_2(aq)\rightarrow Pb^{2+}(aq)+2Cl^-(aq)$

The expression of ionic product will be,

$Q=[Pb^{2+}][Cl^-]^2$

$Q=(0.20)\times (0.10)^2$

$Q=0.002$

The ionic product of solution is, 0.002

There are three cases for the solubility :

When $Q$ this means that the solution is unsaturated solution and more solid will be dissolve.

When $Q=k_{sp}$ this means that the solution is saturated solution.

When $Q>k_{sp}$ this means that the solution is supersaturated solution and solid will be precipitate.

From this we conclude that the value of $k_{sp}=1.6\times 10^5$ is greater than the ionic product that means the solution is unsaturated solution and more solid will be dissolve.

Hence, the correct option is, (b) unsaturated

6 0

3 years ago

Give the name and symbol of your favorite element and explain why it your favorite element.

Salsk061 [2.6K]

Answer:

The most important elements that we use in everyday life include carbon, hydrogen, oxygen, with smaller amounts of things like chlorine, sulfur, calcium, iron, phosphorus,nitrogen, sodium, and potassium. Apart from these, other elements include magnesium, zinc, neon, and helium are also in our daily existence.

all these element are my favourite element .......

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3 years ago

How are fusion reactions different from fission reactions?

WARRIOR [948]

Here you go I just googled it