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3 years ago

12

What is gravity? In your own words?

1 answer:

Natali [406]3 years ago

7 0

Gravity is the force that acts upon us all our lives. It is produced by the gravitational pull of the planet.

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Climate has changed naturally throughout Earth’s history, but how is climate change today different?

Alex_Xolod [135]

Answer: Earth's climate has fluctuated through deep time, pushed by these 10 ... How Earth's Climate Changes Naturally (and Why Things Are Different Now) ... So if the climate changed before humans, how can we be sure we're ... can be disruptive, but in the grand scale of Earth's history it's tiny and temporary

Explanation:

7 0

3 years ago

You have a 25.2 L sample of gas at 1.25 atm and 25.0 degrees Celsius. How many moles are present in this gas. For your answer, p

Elenna [48]

Answer:

<u>1.29 mol</u>

Explanation:

This is a direct application of the equation for ideal gases.

$PV=nRT$

Where:

P = pressure = 1.25 atm
V = volume = 25.2 liter
R = Universal constant of gases = 0.08206 atm-liter/K-mol
T = absolute temperature = 25.0ºC = 25 + 273.15 K = 298.15 K
n = number of moles

Solving for n:

$n=\frac{PV}{RT}$

Substituting:

$n=\frac{1.25atm\times 25.2liter}{0.08206atm-liter/K-mol\times298.15K }\\\\n=1.29mol$

8 0

3 years ago

When air pressure rapidly falls, what weather change usually occurs?

Mama L [17]

hope this helps

Explanation:

a prolong storm will occur

that's what I found

8 0

3 years ago

The chemical properties of a substance can only be observed when it is changed into a different substance. True or False

HACTEHA [7]

I am pretty sure that the answer is true

6 0

3 years ago

Read 2 more answers

when writing numbers using scientific notation, numbers greater than one have..... exponents and numbers less than one have.....

Sav [38]

Positive and negative

8 0

4 years ago