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3 years ago

15. Which of the following is a correct statement?

Chemistry

2 answers:

Anna11 [10]3 years ago

7 0

Answer:

The answer is A

Explanation:

Nuclear power plants produce non-radioactive waste

zalisa [80]3 years ago

3 0

Answer:

Explanation:

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Combine each side and then balance the whole equation. Al+HCl=AlCl3+H^+

Aneli [31]

Answer:

$2Al + 6 HCl ---> 2AlCl_3 + 3 H_2$

Explanation:

The valency of aluminium is +3 while the valency of chlorine is -1

we will first write the half reactions

Half oxidation reaction

$Al -----> Al^{3+} + 3^{e-}\\2H^+ 2e^- ----> H_2\\Cl + e^- -----> Cl^-$

Now will write the complete equation-

$Al + HCl -----> AlCl_3 + H_2$

The balanced equation would be

$2Al + 6 HCl ---> 2AlCl_3 + 3 H_2$

5 0

3 years ago

B. The equilibrium constant for the reaction 2H2(g) + S2(g) 2H2S(g) is Keq = . (3 points)

eimsori [14]

Answer:

i. Keq=4157.99.

ii. More hydrogen sulfide will be produced.

Explanation:

Hello,

i. In this case, for the concentrations at equilibrium on the given chemical reaction, the equilibrium constant results:

$Keq=\frac{[H_2S]^2}{[H_2]^2[S_2]} =\frac{(0.97M)^2}{(0.051M)^2(0.087)} =4157.99$

ii. Now, by means of the Le Chatelier's principle, the addition of a reactant shifts the reaction towards products, it means that more hydrogen sulfide will be produced in order to reach equilibrium.

Best regards.

4 0

2 years ago

True or false: Nonmetals are good conductors of electricity?

Ostrovityanka [42]

Answer:

False

They dont conduct electricity that well/at all

8 0

2 years ago

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Balancing oxidation-reduction reactions <br> Mg+ N2—>Mg3N2

BartSMP [9]

Answer:

${ \sf{3Mg_{(s)} + N_{2(g)} →Mg _{3}N_{2(s)}}}$

3 0

2 years ago

Will mark as Brainliest.

Serga [27]

The amount of kinetic energy required for the molecules to break free of the intermolecular forced in the liquid is raised because the other ones don’t make sense

5 0

2 years ago

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