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3 years ago

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If Earth were not tilted on its axis, what change would we experience? A) Day length would be less than 24 hours. B) Both sides

of the moon would be visible. C) Temperatures would be constant year round. D) The length of the year would be more than 365 days.

2 answers:

77julia77 [94]3 years ago

4 0

Temperatures would be constant year round

Bezzdna [24]3 years ago

4 0

The answer is C

God bless

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In a mixture of hydrogen and nitrogen gases, the mole fraction of nitrogen is 0.333. If the partial pressure of hydrogen in the

notka56 [123]

Answer:

$P_T=112.4torr$

Explanation:

Hello there!

In this case, since these problems about gas mixtures are based off Dalton's law in terms of mole fraction, partial pressure and total pressure, we can write the following for hydrogen, we are given its partial pressure:

$P_{H_2}=x_{H_2}*P_T$

And can be solved for the total pressure as follows:

$P_T=\frac{P_{H_2}}{x_{H_2}}$

However, we first calculate the mole fraction of hydrogen by subtracting that of nitrogen to 1 due to:

$x_{H_2}+x_{N_2}=1\\\\x_{H_2}=1-0.333=0.667$

Then, we can plug in to obtain the total pressure:

$P_T=\frac{75.0torr}{0.667}\\\\P_T=112.4torr$

Regards!

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2 years ago

Which element is in group 2 and period 7 of the periodic table

bekas [8.4K]

Hey
Sorry, But There Is No 7th Element in group two. only six which is Radium.
~Spades15

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3 years ago

In an electron-dot structure of an element, the dots are used to represent ________.

Vlad [161]

Dots are used to represent electrons.

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3 years ago

What are 2 of the characteristics of temporary physical change

Natali5045456 [20]

Answer:

Temporary in nature.

No new substance is formed.

Explanation:

Temporary in nature: Does not affect the internal structure of a substance, only the molecules are rearranged.

No new substance is formed: Most of the physical changes are reversible. We can obtain the substance back even after the change.

hope this helps

have an awesome day -TJ

8 0

1 year ago

Read 2 more answers

AleksandrR [38]

Answer:

Explanation:

A or B

I would say B do

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3 years ago