LEWIS DOT
Mg3 N2 how do I get my answer

Answers

Answer 1

Answer:

Final answer:

The Lewis dot structure for Mg3N2 represents the ionic bonding between magnesium and nitrogen. Each magnesium atom donates its 2 valence electrons to nitrogen, as represented by zero dots around each Mg and eight around each N.

Explanation:

The student is asking about the Lewis dot structure of Mg3N2, which is commonly known as magnesium nitride. The Lewis dot structure is a graphical representation of the molecule that shows how the electrons are arranged among the atoms of the molecule.

To draw the Lewis dot structure for magnesium nitride, follow these steps:

Magnesium (Mg) has 2 valence electrons, and there are 3 Mg atoms, so in total there are 6 valence electrons from Mg.
Nitrogen (N) has 5 valence electrons, and there are 2 N atoms, so in total there are 10 valence electrons from N.
In Mg3N2, Mg donates its 2 electrons to fill the octet of N, and N accepts these electrons.
After this, each Mg atom is surrounded by zero dots and each N atom is surrounded by eight dots.

This process represents the Ionic bonding in Mg3N2.

Learn more about Lewis dot structure here:

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a gas at 155 kPa and 298 K occupies a container with an initial volume of 1.00 L. By changing the volume, the pressure of the gas increases to 605 kPa as the temperature is raised to 398 K. What is the new volume?

Find volume of 1 mole of helium gas when the pressure is 1.46 atm and the temperature is 270k

Answers

we can use the ideal gas law equation to find the volume of He
PV = nRT
where P - pressure 1.46 atm x 101 325 Pa/atm = 147 934.5 Pa
V - volume
n - number of moles - 1 mol
R - universal gas constant - 8.314 Jmol⁻¹K⁻¹
T - temperature - 270 K
substituting these values in the equation
147 934.5 Pa x V = 1 mol x 8.314 Jmol⁻¹K⁻¹ x 270 K
V = 15.17 L
the volume is 15.17 L

A yield of NH3 of approximately 98% can be obtained at 200°C and 1,000 atmospheres of pressure. How many grams of N2 must react to form 1.7 grams of ammonia, NH3? 0.0058 g .052 g 1.4 g 2.8 g

Answers

Since the percent yield of the reaction is 98%, that means that 1.7g of ammonia is 98% of the theoretical yield so you need to find what the theoretical yield is by dividing 1.7 by .98 to get 1.735g. Since you know that the theoretical yield is 1.735g you can use stoichiometry to figure out how much N₂ is required in order to produce 1.735g of ammonia.

To do that you first need to find the balanced chemical equation for the reaction which is N₂+3H₂⇒2NH₃. Then you need to find how many moles of ammonia are in 1.735g by dividing 1.735 by the molar mass of ammonia (17g/mol) to get 0.1021mol of ammonia. After that you can find the number of moles of N₂ required to make 0.1021mol of ammonia by using the fact that 1mol N₂ is used to make 2mol NH₃ so you divide 0.1021 by 2 to get 0.05103mol N₂. lastly you can find the number of grams of N₂ by multiplying 0.05103 by the molar mass of N₂ (28g/mol) to get 1.42g of N₂. Therefore 1.4g of N₂ is required to make 1.7g of ammonia.

I hope this helps. Let me know in the comments if anything is unclear.

How many grams of kno3 pellets must be dissolved in water in order to prepare 100 ml of a 8 m kno3?

Answers

in 8M of KNO3, there are x moles of KNO3 divided by (100/1000)L of water (because molarity is concentration, given by no. of moles divided by total volume in liters).

by changing the subject of formula, x = 0.1L × 8M = 0.8mol

given the no. of mol of KNO3, mass of KNO3 is given by no. of mol multipled by the relative molecular mass of KNO3.

mass = 0.8mol × 101.10g/mol (or whatever your periodic table says) = 80.88g

The chemical equation below summarizes cellular respiration.6O2 + C6H12O6 à 6CO2 + 6H2O + energy

The energy that is released by cellular respiration is in the form of
a. dark energy.
b. solar energy.
c.nuclear energy.
d.chemical energy.

Answers

Chemical energy. At the end of cellular respiration, molecules of ATP will be created. These molecules contain huge amount of energy useful for biological processes.

Its D.Chemical Energy

Lenses can be found in a variety of objects. Which example does not contain a lens?A.
a magnifying glass

B.
a telescope

C.
chemical safety goggles

D.
a microscope

Answers

Answer:

chemical safety goggles do not have lens.

Explanation:

We use lenses to make a clear picture of anything.

They may be used to magnify an object.

Lens can be used in microscope to magnify the image of a microscopic object.

Telescope is used to see far objects, clearly.

Magnifying glass is a simple lens used for magnifying the image of any small ojbect or image or letter.

However chemical safety glasses uses simple glass.

c. chemical safety goggles.

Which mineral has the same hardness as a fingernail?a. Diamond
c. Fluorite
b. Topaz
d. Gypsum

Answers

Answer:

Gypsum

Explanation:

The hardness of minerals or substances is measured qualitatively using Mohs Scale. In this scale the hardness is measured qualitatively by characterizing the resistance shown by one substance when rubbed against second substance. Therefore, greater points are given to those substances which are capable of making scratches on other substances. The Mohs Scale of given compounds is as follow,

Diamond 10

Fluorite 4

Topaz 8

Gypsum 1.5 to 2

While the hardness value of Fingernail is 2 to 2.5. Hence, this value is close to Mohs scale hardness value of Gypsum therefore, gypsum is the correct answer.

Gypsum has the same hardness as a fingernail

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