Which statement best explains the relationship between the electric force between two charged objects and the distance between them?

Answers

Answer 1

Answer:

Answer:

As the distance increases by a factor, the electric force decreases by the same factor.

Explanation:

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2H₂O ----> 2H₂ + O₂How many moles of hydrogen are produced when 6.28 mol of oxygen form?

A.) 3.14 mol
B.) 6.28 mol
C.) 12.6 mol
D.) 25.2 mol

Answers

2 H2O ------------> 2 H2 + 1 O2

2 mol H2 ----> 1 mol O2
x mol H2 -----> 6.28 mol O2

x = 6.28 * 2

x ≈ 12.6 mol

answer C

hope this helps!.

6.28 mol O2* (2 mol H2/ 1 mol O2)= 12.6 mol H2

The correct answer is C. 12.6 mol~

How can an iceberg (temperature=0 Celsius) have more energy than a burning match head (temperature=230 Celsius)?

Answers

A burning match head whose temperature is 230 degree Celsius have more energy than an iceberg whose temperature is 0 degree Celsius.

What is Kinetic energy ?

Kinetic energy is a form of energy in which an object possesses due to its motion. The kinetic energy of an object is depends up on both the velocity and mass. The S.I unit of Kinetic energy is Joules.

The temperature of burning match head is given 230 degree Celsius and temperature of iceberg is given 0 degree Celsius. A burning match head has a higher temperature than the iceberg due to average molecule in the burning match head moves faster than the average molecule in the iceberg.

Thus, from above conclusion we can say that A burning match head whose temperature is 230 degree Celsius have more energy than an iceberg whose temperature is 0 degree Celsius.

Learn more about the Kinetic Energy here: brainly.com/question/114210

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temperature is the average energy of each particle and does not really give you an indication of the total internal energy. That being said, total internal energy is the sum of all of the molecule's energy in a given object so it would make sense that an ice berg (having a huge number molecules at a lower average energy) would have more internal energy than a match head (having a much smaller number of molecules at a higher average energy). Basically, the fact that ice bergs tend to be huge and contain much more molecules than a match head, means that ice bergs can have a larger total internal energy which means they store more energy.

I hope this helps.

What's the compound name of Si+ C2H3O1/2?

Answers

What is the name of CuC2H3O2?
The answer is Copper (I) Acetate. (:

How does temperature, pressure and surface area affect the dissolving process

Answers

If I am correct, yes. As I was told in chemistry, the surface area affects the dissolving of the "sugar". If you put regular Surat in a hot cup of coffee, it will dissolve at a quick pace, but what if you put the same amount of sugar in the same amour of coffee, but the sugar was fine powder? It would dissolve even faster since it has more surface area. So temperature does affect the dissolving. Hope this helps!

Temperature : - DIssolving process is fastened by increase in temperture.( directly proportional)

Pressure : - Dissolving process is fastened by decrease in pressure.( inversely proportional)

Surface area - Dissolving process is fastened by increase in surface area. ( directly proportional)

A rock weighing 75.0g is placed in a graduated cylinder displacing the volume from 31.4 ml to 36.5ml. What is the density of the rock in grams /cubic centimeter.

Answers

Answer:

14.71 g/cm³

Explanation:

The density of a substance can be found by using the formula

$density = (mass)/(volume) \n$

volume = final volume of water - initial volume of water

volume = 36.5 - 31.4 = 5.1 mL

But

1 mL = 1 cm³

5.1 mL = 5.1 cm³

From the question we have

$density = (75)/(5.1) \n = 14.705882..$

We have the final answer as

14.71 g/cm³

Hope this helps you

16 Which two gases can not be broken down by chemical means?(1) CO and He (3) Xe and He(2) CO and NH3 (4) Xe and NH3

Answers

Final answer:

The two gases that cannot be broken down by chemical means are He (helium) and Xe (xenon).

Explanation:

According to the question, we are looking for two gases that cannot be broken down by chemical means. Chemical means refer to chemical reactions that break down compounds into their constituent elements. The options given are (1) CO and He, (2) CO and NH3, (3) Xe and He, and (4) Xe and NH3.

CO and NH3 are both compounds that can be decomposed by chemical means. However, both He (helium) and Xe (xenon) are noble gases that cannot be broken down by chemical means. This is because noble gases have stable electron configurations, making them unreactive and resistant to chemical reactions. Therefore, the correct answer is (3) Xe and He.

Learn more about Chemical stability here:

brainly.com/question/2066892

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Other Questions

Which subatomic particles orbit the nucleus

Which results when an atom has such a strong attraction for electrons that it pulls one or more electrons completely away from another atom?

CAN SOMEONE THATS GOOD AT CHEM PLEASE HELP ME?!?!I’LL GIVE 50 POINTS!!!AND A BRAINIEST!!!PLEASE I HAVE OTHER HW TO DO:(

Hydrogen peroxide decomposes to give water and oxygen gas according to the equation below. If 3.0 moles of hydrogen peroxide decompose, what volume of oxygen gas is produced at a pressure of 1.0 atm and a temperature of 23 °C? 2 H2O2(l) → 2 H2O(l) + O2(g)