CHEMISTRY HIGH SCHOOL

Define electron affinity

Answers

Answer 1
Answer: Electron affinity corresponds to the energy released when an electron is added to a neutral atom in the gas phase.

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Which formula is MgI2

Answers

Answer:

Magnesium iodide (MgI2)

What of the following could be classified as matter

Answers

Answer:

Desk

Water

Cloud

Helium

Explanation:

Why is the nitrogen group considered a mixed group?

Answers

In periodic table, metal, nonmetal and metalloids are mixed in group is know to be mixed group. Nitrogen group is mixed.

Define periodic table?

The periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the highest atomic number. There are five parts in periodic table Component Groups, Ionic Bonds, element periods, and so forth, ionic bonds and Bonds made of metal.

The nitrogen group is said to be mixed because it is contains metal, nonmetal and metalloids. Elements can be classified into metal, non-metal, and metalloids.  Nitrogen group mixed group contains the nonmetals nitrogen (N), and phosphorus (P), the metalloids arsenic (As) and antimony (Sb), and the metals bismuth (Bi).

To find more about elements, refer the link below:

brainly.com/question/14347616

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Explanation:

The nitrogen group is considered mixed because it is composed of elements of equally different classifications of metal, non-metal, and metalloids.  The group contains the nonmetals nitrogen (N), and phosphorus (P), the metalloids arsenic (As) and antimony (Sb), and the metals bismuth (Bi) and Moscovium (Mc).

If the solution process is endothermic, then an increase in temperature usually results in:an increase in solubility

a decrease in solubility

no change in the solubility

a slower reaction

Answers

If the solution process is endothermic, then an increase in temperature usually results in an increase in solubility. Their heat of reaction is usually positive. The rest of the choices do not answer the question above.

Answer:

solubility increases

Explanation:

Estion 2
Where are the non-metals on the periodic table?

Answers

Answer: nonmetals are located on the upper right

Explanation:

The molar mass of nitrogen (N2) is 28.02 g/mol. What is the mass, in grams, of 4.60 mol of N2?0.164
6.09
23.4
129

Answers

Molar mass nitrogen ( N2 ) = 28.02 g/mol

1 mol N2 -------> 28.02 g
4.60 mol ---------> x g

x = 4.60 * 28.02

x = 129 g of N2

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Answer:

Option D: 129 grams

Explanation:

edge! hope this helps

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