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Korolek [52]
3 years ago
15

Using the periodic table, choose the more reactive nonmetal. Br or As

Chemistry
2 answers:
Hatshy [7]3 years ago
6 0

Answer:

bromine is more reactive non-metal.

Explanation:

Both the elements have to gain 1 electron but the size of bromine is less than the size of astatine. And therefore, the tendency of accepting an electron by bromine is more than the tendency of astatine. Hence, bromine is more reactive non-metal.

GaryK [48]3 years ago
6 0

Answer:

bromine is more reactive non-metal.

Explanation:

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vredina [299]

Answer : The correct expression for equilibrium constant will be:

K_c=\frac{[C]^8}{[A]^4[B]^2}

Explanation :

Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.

The equilibrium expression for the reaction is determined by multiplying the concentrations of products and divided by the concentrations of the reactants and each concentration is raised to the power that is equal to the coefficient in the balanced reaction.

As we know that the concentrations of pure solids and liquids are constant that is they do not change. Thus, they are not included in the equilibrium expression.

The given equilibrium reaction is,

4A+2B\rightleftharpoons 8C

The expression of K_c will be,

K_c=\frac{[C]^8}{[A]^4[B]^2}

Therefore, the correct expression for equilibrium constant will be, K_c=\frac{[C]^8}{[A]^4[B]^2}

4 0
3 years ago
Which compound does not form a precipitate when reacted with sodium hydroxide?
Alla [95]

Answer:

NaNO₃

Explanation:

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From the choices given precipitation reaction will occur between;

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  • FeSO₄(aq) + 2NaOH(aq) → Fe(OH)₂(s) + Na₂SO₄(aq)

Fe(OH)₃, Cu(OH)₂, and Fe(OH)₂ are precipitates.

From the rules of solubility, hydroxides are insoluble except Ca(OH)₂ which is slightly soluble and hydroxides of ammonium and alkali metals.

5 0
3 years ago
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Answer:

carbon because organic compounds are made up of hydrogen and carbon

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Answer:

I hope you have the answer now

Explanation:

u an

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3 years ago
Iron is used to make steel for building bridges. Some bridges have blocks of magnesium attached to them. Explain why?
Ede4ka [16]
Blocks of magnesium is used to prevent iron corrosion.
This way of prevention is called sacrificial protection.
6 0
3 years ago
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