3 years ago

An ionic bond is best described as

Chemistry

2 answers:

LekaFEV [45]3 years ago

6 0

The answer would be B the transfer of electrons from one atom to another

Setler79 [48]3 years ago

6 0

Answer:

E) the attraction between two metal atoms.

Explanation:

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2 years ago

In the presence of excess oxygen, methane gas burns in a constant-pressure system to yield carbon dioxide and water: CH4 (g) 2O2

Degger [83]

Answer:

The energy released will be -94.56 kJ or -94.6 kJ.

Explanation:

The molar mass of methane is 16g/mol

The given reaction is:

$CH_{4}(g) + 2O_{2} (g) --> CO_{2} (g)+ 2H_{2}O(l)$

the enthalpy of reaction is given as ΔH = -890.0 kJ

This means that when one mole of methane undergoes combustion it gives this much of energy.

Now as given that the amount of methane combusted = 1.70g

The energy released will be:

$=\frac{energy released by one moleXgiven mass}{molarmass} =\frac{-890X1.7}{16}= -94.56 kJ$

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3 years ago

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Oxana [17]

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Espero que esto ayude :)

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3 years ago

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What is the density of a bar of silver with a mass of 68 g and a volume of 6.5 cm3?

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The answer choice is B. <span>10.50 g/cm3</span>

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3 years ago