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3 years ago

15 15. Which two elements will form a covalent bond?

Chemistry

1 answer:

Nitella [24]3 years ago

3 0

Answer:

K and Cl

Explanation:

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Which of the following ions is formed when the positive hydrogen ions from an acid bond to water molecules? он- ООН- он20* ОНО*

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"A certain group one metal combines with Hydrogen, to form a molecule with the formula XH. The equilibrium bond length of this c

Tasya [4]

Based on the bond length, the molecular weight of the unknown metal X is 23.

<h3>What are ionic compounds?</h3>

Ionic compounds are compounds which are formed between oppositely charged ions.

When hydrogen combines with the group 1 metals, they form ionic compounds.

The group one metals that combine with hydrogen to firm ionic bonds include:

Lithium to give Lithium hydride with equilibrium bond length of 0.239Å.
Sodium to give sodium hydride with equilibrium bond length of 1.896Å.
Potassium to give potassium hydride with equilibrium bond length of 2.321Å

The molecular weight of lithium is 7 g

The molecularweight of sodium is 23

The molecular weight of Potassium is 39.

Therefore, based on the equilibrium bond length, the molecular weight of the unknown metal X is 23.

Learn more about bond length at: brainly.com/question/3405662

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3 years ago

What is a solution? a solid dissolved in a gas a solute and a solvent a liquid dissolved in a gas an amalgam of solids, liquids,

Juli2301 [7.4K]

A solution is when a solute dissolves in a solvent. ( I don’t understand the rest of the question)

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3 years ago

Gold is a very soft metal that can be hammered into extremely thin sheets known as gold leaf. If a 1.78 g piece of gold is hamme

Solnce55 [7]

Answer:

$2.0489\times 10^{-6} cm$ is the average thickness of the sheet.

Explanation:

Mass of gold ,m= 1.78 g

Volume of the gold = V

Density of the gold = D = $19.32g/cm^3$

$D=\frac{m}{V}=19.32g/cm^3=\frac{1.78 g}{V}$

$V = 0.09213 cm^3$

Area of the hammered gold sheet,A = $48.4 ft^2=44,965.052 cm^2$

Thickness of the hammered gold = h

( $1 ft^2=929.03 cm^2$ )

Volume = Area × thickness

$V= A\times h$

$0.09213 cm^3=44,965.052 cm^2\times h$

$h=2.0489\times 10^{-6} cm$

$2.0489\times 10^{-6} cm$ is the average thickness of the sheet.

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4 years ago