CHEMISTRY HIGH SCHOOL

What is the name of the giant bubble of charged gas that surrounds the sun?a. heliosphere
b. galaxy
c. Kuiper Belt
d. Oort Cloud

Answers

Answer 1
Answer: The correct answer is A. The gin bubble of charged gas around the sun is called the heliosphere. Basically, the heliosphere is a sphere of helium. This is a region where the solar wind is said to have an influence.

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which of the following describes a neutral atom of oxygen?. a.6 protons. 6 neutrons, 6 electrons. b. 6 protons, 6 neutrons, 8 electrons. c. 8 protons, 8 neutrons, 10 electrons. d. 8 protons, 8 neutrons, 8 electrons

Answers

the one that describe a neutral atom of oxygen would be : D. 8 protons, 8 neutrons, and 8 electrons

In periodic table, oxygen has a mass number of 16 and 8 electrons

In order to get neutrons, we just need to subtract 16 with 8 , and we get 8 neutrons

hope this helps

D. 8 protons, 8 neutrons, 8 electrons

What are the three particles of an atom?

Answers

The three particles found in an atom are the protons, neutrons and electrons. Protons have a positive charge. Electrons have negative charge. Lastly, neutrons have no net electrical charge. Protons and neutrons are much heavier than electrons and are located in the center of the atom.

A gas cylinder contains 2.0 mol of gas X and 6.0 mol of gas Y at a total pressure of 2.1 atm. What is the partial pressure of gas Y?

Answers

The answer is 1.6 atm. Let's first calculate the mole fraction of gas Y. The mole fraction (x) is: x = n1/n, where n1 is a number of moles of an individual gas in a mixture and n is total moles of the gas mixture. We know that n1 of gas Y is 6.0 mol (n1 = 6.0 mol) and that there are in total 8. mol of the gas mixture (n = 2.0 + 6.0 = 8.0 mol). Now calculate the mole fraction of gas Y. x = 6.0/8.0 = 0.75. Now, let's use the mole fraction of gas Y (x) and the total pressure (P) to calculate the partial pressure of gas Y (P1): x = P1/P. P1 = x * P. If x = 0.75 and P = 2.1 atm, then the partial pressure of gas Y is: P1 = 0.75 * 2.1 atm = 1.6 atm.

yes, this would be 1.6 atm

What is the total number of moles of hydrogen gas contained in 9.03x10^23 molecules?

Answers

According to the concept of Avogadro's number, there are 1.499 moles of hydrogen gas contained in 9.03 x 10²³ molecules.

What is Avogadro's number?

Avogadro's number is defined as a proportionality factor which relates number of constituent particles with the amount of substance which is present in the sample.

It has a SI unit of reciprocal mole whose numeric value is expressed in reciprocal mole which is a dimensionless number and is called as Avogadro's constant.It relates the volume of a substance with it's average volume occupied by one of it's particles .

According to the definitions, Avogadro's number depend on determined value of mass of one atom of those elements.It bridges the gap between macroscopic and microscopic world by relating amount of substance with number of particles.

Number of atoms can be calculated using Avogadro's number as follows: mass/molar mass×Avogadro's number

Number of moles is calculated from Avogadro's number as, 1 mole=6.023×10²³ molecules , thus 9.03×10²³ molecules  will have 9.03×10²³ /6.023×10²³=1.499 moles.

Thus, there are 1.499 moles of hydrogen gas contained in 9.03 x 10²³ molecules.

Learn more about Avogadro's number,here:

brainly.com/question/11907018

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I would say your answer is 22.4L 
Hope that helps!!
have a wonderful day!!

What region of the atom contains most of the atoms mass?

Answers

Answer:

Nucleus

Explanation: it is the center of the atom, and contains protons and nuetrons

Using the following phase diagram, which line segment describes the interface between solid and vapor?A-B

B-C

A-B-C

B-D

Answers

In the given phase diagram, the line segment that describes the interface between solid and vapor is A-B. The rest of the choices do not answer teh question above
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