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Finger [1]
3 years ago
9

A sample of argon gas collected at a pressure of 0.918 atm and a temperature of 279 K is found to occupy a volume of 719 millili

ters. How many moles of Ar gas is in the sample?
mol
Chemistry
1 answer:
babymother [125]3 years ago
3 0
Yeah i have 0 idea i’m sorry.
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1 . a chemical bond formed by the electrostatic attraction between ions covalent bond
liberstina [14]

Explanation:

When there occurs sharing of electrons between two chemically combining atoms then it forms a covalent bond. Generally, a covalent bond is formed between two non-metals.

An ionic bond is defined as the bond formed due to transfer of one or more number of electrons from one atom to another. An ionic bond is always formed between a metal and a non-metal.

Every atom of an element will have orbitals in which electrons are found. These orbitals are known as energy level.

A molecule is defined as the smallest particle present in a substance or atom.

A metallic bond is formed due to mobile valence electrons shared by positive nuclei in a metallic crystal.

Thus, we can conclude that given statements are correctly matched as follows.

1).  a chemical bond formed by the electrostatic attraction between ions - ionic bond

2).  a chemical bond formed by two electrons that are shared between two atoms - covalent bond

3). the orbitals of an atom where electrons are found - energy level

4).  the smallest particle of a covalently bonded substance - molecule

5).  a bond characteristic of metals in which mobile valence electrons are shared among positive nuclei in the metallic crystal - metallic bond

7 0
3 years ago
A salt forms in the reaction of barium with chlorine what is the most likely formula unit of this salt
Mashcka [7]
 Best Answer:<span>  </span><span>LiCl 

Cl and Li 

glucose 

BeF2 

last question answer 3 strong electrostatic requires a lot of energy
does this help though??</span>
3 0
3 years ago
Is Solar energy a matter?
NikAS [45]

Answer:

Solar energy is a renewable free source of energy

Explanation:

It is sustainable and totally inexhaustible, unlike fossil fuels which are finite. It is also a non-polluting source of energy and it does not emit any greenhouse gases when producing electricity.

5 0
2 years ago
Read 2 more answers
How many moles are represented by 3.01 - 1023 helium atoms?
Pavlova-9 [17]

Answer:

0.5 mol

Explanation:

Given data:

Number of atoms of He = 3.01 ×10²³

Number of moles = ?

Solution:

Avogadro number:  

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.02 × 10²³ is called Avogadro number.

1 mole = 6.02 × 10²³ atoms

3.01 ×10²³ atoms × 1 mol / 6.02 × 10²³ atoms

0.5 mol

7 0
3 years ago
If 0.060 faraday is passed through an electrolytic cell containing a solution of In3+ ions, the maximum number of moles of In th
stira [4]

Answer: option B. 0.020 mole

Explanation:Please see attachment for explanation

8 0
3 years ago
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