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Aleks [24]
3 years ago
15

A woman’s menstrual cycle usually lasts about 28 days T/F

Chemistry
2 answers:
Sergio039 [100]3 years ago
6 0

A woman’s menstrual cycle usually lasts about 28 days *TRUE*

anastassius [24]3 years ago
3 0

This is true.

For the entire cycle, it lasts from 26 to 31 days.

Hope this helps! Brainliest is always appreciated!

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Why are reactions of ionic compounds very fast?
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Ionic compounds<span> in solution react </span>faster<span> than molecular </span>compounds<span>. This </span>is <span>because </span>Ionic compounds<span> break apart to form free </span>ions. Therefore, there are no bonds<span> to break </span>so<span> the </span><span>reaction is fast</span>
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Which describes the composition of carbohydrates?
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HOPE THIS HELPS

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3 0
2 years ago
A sample of xenon gas occupies a volume of 6.80 L at 52.0°C and 1.05 atm. If it is desired to increase the volume of the gas sam
Pavlova-9 [17]

Answer:

207.03°C

Explanation:

The following data were obtained from the question:

V1 (initial volume) = 6.80 L

T1 (initial temperature) = 52.0°C = 52 + 273 = 325K

P1 (initial pressure) = 1.05 atm

V2 (final volume) = 7.87 L

P2 (final pressure) = 1.34 atm

T2(final temperature) =?

Using the general gas equation P1V1/T1 = P2V2/T2, the final temperature of the gas sample can be obtained as follow:

P1V1/T1 = P2V2/T2

1.05 x 6.8/325 = 1.34 x 7.87/T2

Cross multiply to express in linear form as shown below:

1.05 x 6.8 x T2 = 325 x 1.34 x 7.87

Divide both side by 1.05 x 6.8

T2 = (325 x 1.34 x 7.87) /(1.05 x 6.8)

T2 = 480.03K

Now, let us convert 480.03K to a number in celsius scale. This is illustrated below:

°C = K - 273

°C = 480.03 - 273

°C = 207.03°C

Therefore, the final temperature of the gas will be 207.03°C

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3 years ago
What are examples of molecular compounds that we use in everyday life?
IrinaVladis [17]

Answer:

Carbon dioxide and hydrogen monoxide

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3 years ago
Among the gases listed, which would have the fastest rate of effusion?
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3 years ago
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