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hoa [83]
3 years ago
7

An atom with atomic number of 20 and a plus 1 charge (Help)

Chemistry
1 answer:
VMariaS [17]3 years ago
6 0

Answer:

calcium 20. charge of calcium is +2

2,8,8,2  is elecrons arrangement in the outermost shell.2 electrons in the outermost shell easily remove it. And form stable cations.

Explanation:

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A bird sits on her eggs to keep them warm
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This would be Conduction

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What will occur when the trough of Wave A overlaps the crest of Wave B?
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Determine the empirical formula of a
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Answer:

AuCl

Explanation:

Given parameters:

Mass of Gold  = 2.6444g

Mass of Chlorine  = 0.476g

Unknown:

Empirical formula  = ?

Solution:

Empirical formula is the simplest formula of a compound. Here is the way of determining this formula.

Elements                                     Au                                             Cl

Mass                                         2.6444                                     0.476

Molar mass                                 197                                          35.5

Number of moles                  2.6444/197                                 0.476/35.5

                                                 0.013                                           0.013

Divide by the

smallest                                 0.013/0.013                                 0.013/0.013

                                                       1                                                   1

The empirical formula of the compound is AuCl

3 0
2 years ago
What is a polar liquid?
BabaBlast [244]
Polar liquids have both negative and positive ends.
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3 years ago
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