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3 years ago

Why are valence electrons important when considering the bonds that form between atoms g

1 answer:

7 0

Answer:Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.

Explanation::)

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Calculate the number of grams of deuterium in an 80,000-L swimming pool, given deuterium is 0.0150% of natural hydrogen

fiasKO [112]

Answer:

$m_{Deu}=2666.7g$

Explanation:

Hello,

In this case, we can apply the following mole-mass-density relationship in order to compute the required grams of deuterium, considering that it is the 0.0150% (molar basis) of natural hydrogen (H₂):

$m_{Deu}=80000LH_2O*\frac{1000gH_2O}{1LH_2O}*\frac{1molH_2O}{18gH_2O} *\frac{1molH_2}{1molH_2O} *\frac{2gH_2}{1molH_2} *\frac{2*0.0150g\ Deu}{100gH_2} \\\\m_{Deu}=2666.7g$

Best regards.

4 0

3 years ago

What is the deffinition of interia

amid [387]

Answer:

Explanation:

-a tendency to do nothing or to remain unchanged

-a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.

7 0

3 years ago

Can someone help me pls will mark Brainly and 10+ points

bixtya [17]

Answer:

Hope this helps :)

Explanation:

1. A physical property is a characteristic of matter that is not associated with a change in its chemical composition.

2. Matter is everything around you. Atoms and compounds are all made of very small parts of matter.

3. Solid, liquid and, gas

4. False

5. Our weight on moon is less than it would be on Earth due to a difference of the strength of gravity on the moon.

6. Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

6 0

3 years ago

Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy of the following chemical rea

Mars2501 [29]

Answer:

$\Delta _rS\°=-2965.27J/K$

Explanation:

Hello,

In this case, for the considered reaction, the standard reaction entropy is computed considering the standard entropy of each product and reactant and their stoichiometric coefficients as shown below:

$\Delta _rS\°=8*S\°_{SF_6}-S\°_{S_8}-24*S\°_{F_2}$

Thus, considering the ALEKS Data tab, we obtain:

$\Delta _rS\°=8*(291.52J/K)-(430.23J/K)-24*(202.8J/K)\\\\\Delta _rS\°=-2965.27J/K$

Regards.

5 0

3 years ago

Write a hypothesis about the effect of dry conditions on earthworm behavior. Use the "if . . . then . . .

Vlada [557]

sorry about the late response...

<u>If an earthworm is exposed to dry conditions, then it will retreat to a moist place because its skin needs to stay moist for the earthworm to survive.</u>

4 0

3 years ago

Read 2 more answers