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2 years ago

Explain how the atoms are held together by tge covalent bond in a molecule of hydrogen?

Chemistry

1 answer:

sveta [45]2 years ago

6 0

Answer:

A hydrogen molecule forms from two hydrogen atoms, each with one electron in a 1 s orbital. The two hydrogen atoms are attracted to the same pair of electrons in the covalent bond. The bond is represented either as a pair of “dots” or as a solid line. Each hydrogen atom acquires a helium-like electron configuration. Shared electrons located in the space between the two nuclei are called bonding electrons. The bonded pair is the “glue” that holds the atoms together in molecular units. The hydrogen molecule is the simplest substance having a covalent bond.

Explanation:

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Determine the number of ions produced in the dissociation of the compound listed. AlF3

scoray [572]

Answer is: the number of ions produced in the dissociation of aluminium fluoride is 4.

Chemical dissociation of aluminium fluoride in water:
AlF₃(aq) → Al³⁺(aq) + 3F⁻(aq).
There are four ions, one aluminium cation and three fluoride anions.
Aluminium has oxidation +3, because it lost three electrons, to have electron configuration as noble gas neon and fluorine has oxidation -1, because it gain one electron to have electron configuration as noble gas neon.

6 0

3 years ago

True or false? When sodium and chlorine combine and bond, a molecule is formed.

CaHeK987 [17]

When Sodium and Chlorine come together they transfer an electron.

- Source: google

Hopefully this was clear and you understood!

3 0

3 years ago

He molecular formula mass of this compound is 180 amu . what are the subscripts in the actual molecular formula?

mezya [45]

I can't actually answer this one if the empirical formula is not given. Luckily, I've found a similar problem from another website. The problem is shown in the picture attached. It shows that the empirical formula is CH₂O. Let's calculate the molar mass of the empirical formula.

Molar mass of E.F = 12 + 2(1) + 16 = 30 g/mol

Then, let's divide this to the molar mass of the molecular formula.
Molar mass of M.F/Molar mass of E.F = 180/30 = 6

Therefore, let's multiply 6 to each subscript in the empirical formula to determine the actual molecular formula.
Actual molecular formula = C₆H₁₂O₆

5 0

3 years ago

What are the reaction types for the following?

Bingel [31]

Answer:

1. decomposition

2. combustion

3.single replacement

4. combination

5. double replacement

Explanation:

1. one compound is split into 2 elements

2. co2 and h20 was the product of the reaction

3. cu is replaced with co

4. 2 compounds become one compound

5. ca is replaced with na and na is replaced with ca

6 0

3 years ago

Help me please guys :)

nika2105 [10]

Explanation:

1. Methane

2. Diamond

3. not sure : )

6 0

3 years ago