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DiKsa [7]
3 years ago
6

Sometimes atoms form molecules by sharing two pairs of valence electrons. When this occurs, the atoms are said to be joined by..

.
Chemistry
1 answer:
Hatshy [7]3 years ago
6 0

Answer:

A double covalent bond

Explanation:

A double covalent bond is a situation where we have two pairs of electrons shared together between the atoms instead of just one pair. Oxygen gas is an example of a simple molecule that contains double bonds.

In other words, it is a type of chemical bond that has 2 electron pairs shared between two atoms.

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Given the following equation: Cu + 2 AgNO3 ---> Cu(NO3)2 + 2
Temka [501]

Given the following equation; Cu + 2AgNO3 = Cu(NO3)2 + 2Ag, 48.97 grams of Cu are needed to react with 262g of AgNO3.

<h3>How to calculate mass of substances?</h3>

The mass of a substance can be calculated using the following steps:

Cu + 2AgNO3 = Cu(NO3)2 + 2Ag

1 mole of Cu react with 2 moles of AgNO3

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moles of AgNO3 = 262g/169.87g/mol = 1.54mol

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mass of Cu = 0.77 × 63.5 = 48.97g

Therefore, given the following equation; Cu + 2AgNO3 = Cu(NO3)2 + 2Ag, 48.97 grams of Cu are needed to react with 262g of AgNO3.

Learn more about mass at: brainly.com/question/6876669

8 0
3 years ago
What layers are composed of metals? Choose all that apply.<br> Inner core<br> Outer core<br> Mantle
svlad2 [7]

Answer:

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Explanation:

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