CHEMISTRY HIGH SCHOOL

Which is a property of a neutron?A) 0 charge
B) +1 charge
C) -1 Charge
D) Essentially no mass

Answers

Answer 1
Answer: A neutron has a charge of 0, as it is neutral.

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Your boss asks you to design a room that can be as soundproof as possible and provides you with threesamples of material. The only information on each sample's label is the material's coefficient of absorption. The coefficient of absorption listed on Sample A is 30%, on Sample B is 47%, and on Sample C is 62%. When your boss asks for your choice and the reasoning behind it, what would you tell him? A. Sample A would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest. B. Sample C would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest. C. Sample C would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the largest. D. Sample A would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the largest.
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The term biodiversity means the variety of organism (true or false)

when copper sulphate + carbon = carbon sulphate + copper , does copper turn into a solid or still stays a liquid

Answers

Solid, copper becomes insoluble when it is alone.

Is T2R an Atom or a Molecule?​

Answers

Answer:

Yes, T2R is an molecule

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The valency of chlorine is one.why?​

Answers

Answer:

Explanation:

The electronic configuration of chlorine can be written as 2, 8, 7. ... Therefore, valence electron in chlorine is 7 and it needs to gain 1 electron from the outermost orbit to attain octet. Hence, the valency of chlorine is 1.

Give two reasons why quarrying is bad for the environment?

Answers

1) The longer the quarrying goes on the less and less recources we will have, soon leading to no more recources 

Draw a model that compares the arrangement of the subatomic particles of oxygen-16 to another isotope, oxygen-18.​

Answers

Explanation:

Answer and Explanation:

Oxygen-16 and oxygen-18 differ in structure only in that oxygen-18 has two more neutrons in its nucleus than oxygen-16 has.

There are three known stable isotopes of oxygen (8O): 16O, 17O, and 18O. Radioactive isotopes ranging from 11O to 26O have also been characterized, all short-lived.

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At stp how many liters of oxygen are required to react completely with 3.6 liters

Answers

If it is assumed that this reaction is taking place at STP (standard temperature and pressure) then one mole of gas occupies 22.4L 

You can then calculate that 3.6L of Hydrogen contains 0.16mol 
1mol/22.4L x 3.6L = 0.16mol 

Every 2 moles of Hydrogen require 1 mole of oxygen to form water. Therefore half of the number of moles of oxygen are required. 
0.16mol/2 = 0.08mol 

Again, we know that at STP 1 mol occupies 22.4L 
0.08mol x 22.4L/mol = 1.79L of O2 needed. 

Also 3.6/2 = 1.8 All ideal gasses will occupy the same ammount of space at STP
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