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Simora [160]
3 years ago
8

Which statement correctly describes a covalent bond?  The valence electrons are joined in a shell around the atoms. The valence

electrons are shared between the atoms. The valence electrons are transferred from one atom to the other. The valence electrons are divided between the atoms.
Chemistry
1 answer:
Vedmedyk [2.9K]3 years ago
4 0
The valence electrons are shared between the atoms
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When molecules are joined I an ordered structure​
olga2289 [7]

Answer:

ice

Explanation:

5 0
3 years ago
How many grams of sodium are in 0.820 moles of na2so4?
s344n2d4d5 [400]
<span>the molar mass of a compound is the sum of the products of the atomic masses by the number of atoms of the element.
molar mass of Na</span>₂SO₄<span> is - 142 g/mol.
1 mol of </span>Na₂SO₄<span> has a mass of 142 g.
In 1 mol of </span>Na₂SO₄<span> the mass of Na is 23 g/mol x 2 = 46 g.
                             
Mass of Na in 1 mol of </span>Na₂SO₄ is - 46 g
                           
mass of Na in 0.820 mol of Na₂SO₄ - 46 g /1 mol x 0.820 mol = 37.72 g.
mass of Na is 37.72 g
5 0
3 years ago
Read 2 more answers
How do you know when a saturated solution has been produced?
Nezavi [6.7K]
How can you tell if a solution is saturated or unsaturated? If more solute is added and it does not dissolve, then the original solution was saturated. If the added solute dissolves, then the original solution was unsaturated.
3 0
2 years ago
when you burn 2 L of propane (C3H8) at stp , you find 5.6L of carbon dioxide has been produced what is the percent yeild
Oksanka [162]

Answer:

93%

Explanation:

First write the balanced reaction

C3H8 + 5O2 --> 3CO2 +4H2O

2nd, find the theoretical yield

2L C3H8 (1mol/22.4L) (3 mol CO2/1 molC3H8) (22.4 L/ 1mol) = 6L

3rd, Find percent yield

%yield = (actual / theoretical) x100 = (5.7/6) x 100 = 93%

7 0
3 years ago
What type of bonding does a material most likely
Nataly_w [17]

Answer:

Covalent bonds

Explanation:

There are about three kinds of bonds in chemistry;

Ionic bonds

Covalent bonds

Metallic bonds

Substances that possess ionic and metallic bonds all have high melting and boiling points.

However, covalent molecules often have low melting and boiling points due to weak intermolecular forces in the solid state. They also have a dull appearance and do not dissolve in water.

8 0
2 years ago
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