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3 years ago

Fill in the Blanks: A molecular compound is made up of two or more _______ atoms. The type

Chemistry

1 answer:

Marizza181 [45]3 years ago

8 0

Answer:

1.molecules of atoms

2.chemical bond

3.electrons

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Fill in the gaps. Will give BRAINLIEST and 5 starss!!!

Stells [14]

First gap is BY USING MAGNETS
2nd is ELECTROLYSIS
3rd is EVAPORATION

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3 years ago

Draw a correct Lewis structure for XeI2 (Xe in middle, surrounded by I's ) that puts a 0 formal charge on all atoms. How many lo

Alona [7]

1) The Lewis structure will be:

I--I

In this structure, the xenon atom is surrounded by two iodine atoms, which are bonded to it through single bonds. Each iodine atom has one lone pair of electrons, for a total of 2 lone pairs on the central atom (xenon).

2) The molar mass of the gaseous compound is 0.416 g/mol.

To draw a correct Lewis structure for XeI2, we need to first count the number of valence electrons in the molecule. Xenon is a noble gas and has 8 valence electrons, while iodine has 7 valence electrons for a total of 23 valence electrons. To satisfy the octet rule and put a 0 formal charge on all atoms, we can use the following Lewis structure:

I--I

To find the molar mass of the gaseous compound, we can use the ideal gas law:

M = dRT/P

Where M is the molar mass, d is the density, R is the ideal gas constant, T is the temperature, and P is the pressure.

Given that the density of the gas is 0.3876 grams/142 mL = 0.002736 grams/mL, the temperature is 150 + 273 = 423 K, the pressure is 775 torr = 775/760 atm = 1.0132 atm, and the ideal gas constant is 0.08206 L·atm/mol·K.

We can calculate the molar mass as follows:

M = (0.002736 g/mL) * (0.08206 L·atm/mol·K / (1.0132 atm)) * (423 K)

M = 0.416 g/mol

Learn more about molar mass, here brainly.com/question/12127540

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1 year ago

. how many lone pairs of electrons are present in the lewis structure of calcium sulfide?

miv72 [106K]

Answer:
<u>Four</u>

Explanation:
Calcium Sulfide is an ionic compound made up of Ca²⁺ and S²⁻.
Ca²⁺ is formed as,

Ca → Ca²⁺ + 2 e⁻

These two electrons are accepte by Sulfur as,

S + 2 e⁻ → S²⁻

So, before accepting 2 electrons S was having six valence electrons, after accepting two electrons from Ca it has 8 electrons which are present in four pairs as shown below,

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3 years ago

Which of the following statements is true? Water (H2O) is an element. A golf ball has a larger volume than a baseball. Most of t

Ipatiy [6.2K]

Most of the substances found on earth are compounds.

(water is made up of 2 elements)

(a baseball is larger than a golf ball by default)

(water has a pH value of 7)

Hope this helps u!

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3 years ago

Read 2 more answers

Why does a higher concentration make a reaction faster?

myrzilka [38]

Option B is correct,
With increase in concentration the density of reactants increases and the system becomes more crowded, the greater the reactants will come in contact with each other and collisions occur. If collision is in proper orientation and has optimum energy then its fruitful and yields product. So, the greater the number of reactants, the greater will be the chances of collision and the greater will be the production of products per unit time and hence, greater is the rate of reaction.

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3 years ago

Read 2 more answers