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Dvinal [7]
3 years ago
13

Covalent bonds are in the air you breathe and the water you drink. How are covalent bonds formed ? A) between atoms with more el

ectrons than protons B) between atoms that share electrons C) between atoms with more neutrons than prontons
Chemistry
1 answer:
serious [3.7K]3 years ago
3 0
<span>A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding. Therefore, option B is the correct answer.</span>
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Choose one natural resource that is nonrenewable. In three to five sentences, describe two impacts that come from obtaining this
Fiesta28 [93]
Oil is a natural non renewable resource and the impacts are the fact that we rely on it heavily and we are running out of a valuable resource not only that we are destroying the earth and its atmosphere and surface in order to harvest it the can affect the human population growth by not having this resource for future generations making them try abs find some other source to rely on
8 0
3 years ago
Help me!!!<br> Pleaseeee!!!!
Sidana [21]

Answer:

0.862 J/gºC

Explanation:

The following data were obtained from the question:

Mass of metal (Mₘ) = 50 g

Initial temperature of metal (Tₘ) = 100 °C

Mass of water (Mᵥᵥ) = 400 g

Initial temperature of water (Tᵥᵥ) = 20 °C

Equilibrium temperature (Tₑ) = 22 °C

Specific heat capacity of water (Cᵥᵥ) = 4.2 J/gºC

Specific heat capacity of metal (Cₘ) =?

The specific heat capacity of the metal can be obtained as follow:

Heat lost by metal = MₘCₘ(Tₘ – Tₑ)

= 50 × Cₘ × (100 – 22)

= 50 × Cₘ × 78

= 3900 × Cₘ

Heat gained by water = MᵥᵥCᵥᵥ(Tₑ – Tᵥᵥ)

= 400 × 4.2 × (22 – 20)

= 400 × 4.2 × 2

= 3360 J

Heat lost by metal = Heat gained by water

3900 × Cₘ = 3360

Divide both side by 3900

Cₘ = 3360 / 3900

Cₘ = 0.862 J/gºC

Therefore, the specific heat capacity of the metal is 0.862 J/gºC

5 0
2 years ago
Why do human sweat and dogs pants ? Explain the purpose and the reason why it is effected ?
SpyIntel [72]
As a result of temperature regulation within the body of endothermic animals, human bodies are much exposed to the environment than any other endothermic animal which causes human to sweat through their sweat glands and dogs has no sweat glands like that of human

6 0
3 years ago
Read 2 more answers
which piece of equipment would be used to measure the volume of a liquid? a. a beaker b. a meter stick c. a graduated cylinder d
Ulleksa [173]
It is a graduated cylinder.
3 0
3 years ago
How many grams of Na2SO4 should be weighed out to prepare 0.5L of a 0.100M solution?​
Nezavi [6.7K]

Answer:

7 gram of Na2SO4 should be required to prepare 0.5L of a 0.100 M solution.

Explanation:

First of all the molecular weight of Na2SO4 is 142.08 gram.Now we all know that if the molecular weight of a compound is dissolved in 1000ml or 1 litee of water then the strength of that solution becomes 1 M.

    According to the given question we have to prepare 0.100 M solution

1000 ml of solution contain 142.08×0.1= 14.208 gram Na2SO4

1    ml of solution contain     14.208÷1000= 0.014 gram

0.5L or 500ml of solution contain 0.014×500= 7gram Na2SO4.

 So it can be stated that 7 gram of Na2SO4 should be required to prepare 0.5L of a 0.100M solution.

     

3 0
2 years ago
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