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vichka [17]
3 years ago
12

Balance the following and label what type of reaction is taking place:

Chemistry
1 answer:
Vadim26 [7]3 years ago
3 0

4,27,20,18

I hope this helps.

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What is the relationship between reaction rate and reaction time
Natali [406]

Answer:

The reaction rate is inversely proportional to the reaction time.

Explanation:

  • The reaction rate is the change of the concentration of reactants and products with the time.

<em>∵ Reaction rate = - Δ[reactants]/Δt = Δ[products]/Δt.</em>

<em>∴ The reaction rate is inversely proportional to the time, as the reaction rate increases it will take a lower time.</em>

4 0
3 years ago
Which one of the following scenarios accurately describes a condition in which resonance can occur? A. A column of air has a hei
bixtya [17]

The correct answer from the choices is: D

Resonance is an event where an external force or vibration moves another system to oscillate with higher amplitude at certain frequences or there is a transfer of energy between two or more different storage modes. 


7 0
3 years ago
Name the two gases that make up most of the air.<br>​
ddd [48]

Answer:

Air is mostly gas

The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.

Explanation:

plz mar k me brainlist

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5 0
2 years ago
Read 2 more answers
Select the correct answer.
WITCHER [35]

Answer:

the answer is distillation

5 0
3 years ago
A boy with pneumonia has lungs with a volume of 1.9 L that fill with 0.080 mol of air when he inhales. When he exhales, his lung
mariarad [96]

<u>Answer:</u> The number of moles of gas remaining in the lungs is 0.063 moles

<u>Explanation:</u>

The relationship of number of moles and volume at constant temperature and pressure was given by Avogadro's law. This law states that volume is directly proportional to number of moles at constant temperature and pressure.

The equation used to calculate number of moles is given by:

\frac{V_1}{n_1}=\frac{V_2}{n_2}

where,

V_1\text{ and }n_1 are the initial volume and number of moles

V_2\text{ and }n_2 are the final volume and number of moles

We are given:

V-1=1.9L\\n_1=0.080mol\\V_2=1.5L\\n_2=?

Putting values in above equation, we get:

\frac{1.9}{0.080}=\frac{1.5}{n_2}\\\\n_2=\frac{1.5\times 0.080}{1.9}=0.063

Hence, the number of moles of gas remaining in the lungs is 0.063 moles

8 0
3 years ago
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