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3 years ago

Which force keeps the planets in orbit? 1. gravity 2.kinetics 3.mass 4.friction

Chemistry

2 answers:

Marizza181 [45]3 years ago

7 0

Answer:

Gravity

Explanation:Gravity is the primary force that keeps the planets revolving around the sun

zvonat [6]3 years ago

4 0

Gravity is the force that keeps the planets in orbit.

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A flask contains 5.0g of neon gas at a temperature of 35°C. The pressure gauge indicates 0.37atm inside the flask. What is the v

DaniilM [7]

Answer:

The volume of the neon gas is 17.07 L.

Explanation:

The ideal gas equation describes the relationship among the four variables P, V, T, and n. An ideal gas<u> is a hypothetical gas whose pressure-volume-temperature behavior can be completely accounted for by the ideal gas equation</u>.

In order to calculate the volume, first we need to convert the grams of neon to moles:

28.18 g Ne ------ 1 mol Ne

5.0 g Ne---------- <u>x= 0.25 mol Ne</u>

Now, using the ideal gas equation we calculate the volume:

$pV= nRT$

$V= nRT ÷ p$

$V= (0.25 mol × 0.082 L.atm/mol.K × 308.15 K ÷ 0.37 atm$

V= 17.07 L

6 0

3 years ago

A weather balloon is filled with helium that occupies a volume of 5.37 104 L at 0.995 atm and 32.0°C. After it is released, it r

svp [43]

Answer:

The new volume is 63583 L

Explanation:

Step 1: Data given

The initial volume of the balloon = 5.37 * 10^4 L

The initial pressure = 0.995 atm

The initial temperature = 32.0 °C = 305.15 K

The pressure decreased to 0.720 atm

The temperature decreased to -11.7 °C = 261.45 K

Step 2: Calculate the new volume

P1*V1 / T1 = P2*V2/T2

⇒with P1 = the initial pressure = 0.995 atm

⇒with V1 = the initial volume = 5.37 *10^4 L

⇒with T1 = the initial temperature = 305.15 K

⇒with P2 = the decreased pressure = 0.720 atm

⇒with V2 = the new volume = TO BE DETERMINED

⇒with T2 = the decreased temperature : 261.45 K

(0.995 * 5.37*10^4)/305.15 = (0.720 * V2) / 261.45

V2 = 63583 L

The new volume is 63583 L

8 0

3 years ago

What are two benefits of scientists using a diagram to model the water cycle?

tatiyna

I believe that the answer is A i could be wrong though.

5 0

3 years ago

A sodium ion has a positive charge because it has

Assoli18 [71]

Because it has more protons than electrons. Protons are positive so if there is more of them than electrons, the ion will have a positive charge.

7 0

3 years ago

The kinetic molecular theory, explains how particles in matter behave.<br> True<br> False

Marizza181 [45]

Answer:

true

<h3>Explanation:it is hard to explan</h3>

7 0

3 years ago

Read 2 more answers