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kobusy [5.1K]
3 years ago
14

Please answer ASAP 90 points! Question below

Chemistry
2 answers:
kherson [118]3 years ago
3 0

Answer:

4

count the red dots on the outer shell.

vfiekz [6]3 years ago
3 0

Answer:

there are 4 electrons in the shell and that element is carbon

Explanation:

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The substances below are listed by increasing specific heat capacity value. Starting at 30.0 °C, they each absorb 100 kJ of ther
JulijaS [17]

The heat change is related to specific heat as

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So if we are considering same amount of substance

and we are starting with the same temperature

the change in temperature will be inversely proportional to the specific heat

higher the specific heat lower the temperature change

Thus the change in temperature will be least for the substance with highest specific heat.

Answer: Hydrogen

4 0
3 years ago
Wine goes bad soon after opening because the ethanol (CH3CH2OH) dissolved in it reacts with oxygen (O2) gas to form water and aq
andrezito [222]

The number of mole of oxygen needed is of 0.080 mole.

To solve this question, we'll begin by writing the balanced equation for the reaction. This is illustrated below:

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From the balanced equation above,

2 moles of O₂ reacted to produce 2 moles of H₂O.

Finally, we shall determine the number of mole of O₂ needed to produce 0.080 mole of H₂O. This can be obtained as follow:

From the balanced equation above,

2 moles of O₂ reacted to produce 2 moles of H₂O.

Therefore,

0.080 mole of O₂ will also react to produce 0.080 mole of H₂O.

Thus, 0.080 mole of oxygen, O₂, is needed for the reaction.

Learn more: brainly.com/question/1563415

7 0
3 years ago
What is the relationship between electron configuration and valence electrons?
Leya [2.2K]

Answer:

The electrons that occupy the outermost shell of an atom are called valence electrons. Valence electrons are important because they determine how an atom will react. By writing an electron configuration, you'll be able to see how many electrons occupy the highest energy level .

3 0
3 years ago
Can a cold front warm air moves which direction
Katena32 [7]
East is the cold front
6 0
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As the volume of a gas at constant temperature did decreased,the pressure increases because
frosja888 [35]

Answer:

boyles law

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volume is inversely proportional to pressure

7 0
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