3 years ago

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

Chemistry

1 answer:

Kryger [21]3 years ago

7 0

Answer:

Explanation:

because bromine is more reactive as reactivity increases on moving from left to right in p-block. hope this make sense :)

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Explain why the sand on a beach cools down at night more quickly than the ocean water.

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The sand on the beach cools down at night then the ocean is because the sand is on dry land.

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3 years ago

Consider the following reversible reaction. What is the equilibrium constant expression for the given system?

ladessa [460]

The question is incomplete. Complete question is attached below
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Answer:
Equilibrium constant (K) is defined as the ratio of concentration of product to concentration of reactant.

For the reaction: 2H2O(g) ↔ 2H2(g) + O2(g)

Equlibrium constant = $\frac{[H_2]^2[O_2]}{[H_20]^2}$

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3 years ago

Read 2 more answers

A reaction produces 0.837 moles of H 2 O . How many molecules of H 2 O are produced?

AleksAgata [21]

Answer:

$5.04 * 10^2^3$

Explanation:

The original calculation to find the number of moles which is $n=\frac{m}{M}$ can be rearranged to give the equation $m=nM$ . Therefore the amount of molecules can be found by $m = 0.837 *6.02*10^2^3$ (multiplying by Avogadro's Number)