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3 years ago

Why is it important to know what temperature scale is being used in a given situation?

1 answer:

4 0

It depends, for example, it is quite important to know the Kelvin scale (i.e 0 degrees Celsius is 273 K and -273 degrees Celsius is 0 K ) when dealing gases. But I don't know other situations where you would need to know other temperature scales.

Hope this helps and also if you are using Fahrenheit 1 Fahrenheit is -17.22 degrees Celsius

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An element has an atomic number of 27. How many protons and electrons are in a neutral atom of the element

Sergeu [11.5K]

Answer:

27 and 32

Explanation:

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2 years ago

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When a molecule of nad+ gains a hydrogen atom, the molecule becomes reduced.

Ilia_Sergeevich [38]

The answer is true.the molecule becomes reduced.

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2 years ago

A chemistry teacher is able to grade chemistry labs at a rate of 5 labs for every 3 minutes. They need to grade 165 labs how man

PIT_PIT [208]

Answer:

1.65hr

Explanation:

Given parameters:

Number of labs = 5 labs

Time taken = 3 minutes

Unknown:

Time taken in hours to grade 165 labs = ?

Solution:

Let us find the rate of the teacher;

Rate = $\frac{number of labs}{time}$

Insert the parameters and solve;

Rate = $\frac{5}{3}$ = 1.67labs/min

Now;

Time to grade 165 labs = $\frac{number of labs}{rate}$

Time to grade 165 labs = $\frac{165}{1.67}$ = 98.8min

Since;

60min = 1hr

98.8min = $\frac{98.8}{60}$ = 1.65hr

3 0

3 years ago

Which of the following pollutants could be reduced through proper maintenance and area ventilation to improve human health?

azamat

Answer:

Chimney soot

Explanation:

The periodicity of chimney used in homes is very highly harmful to human health.
If proper maintenance and cleanliness and ventilation are taken care of on such organic compounds, it can also control human health.
Carbon compounds form chimneys are highly harmful to human health if timber or coal-fired black chimney soot can be disposed of from time to time and with constant maintenance we can control pollution.

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2 years ago

Convert 14.9 inches cubed into ml

ANTONII [103]

244.1673 is your answer

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2 years ago

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