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Sidana [21]
3 years ago
8

Do all smells travel at the same speed

Chemistry
1 answer:
mr_godi [17]3 years ago
7 0
No, physics does not suggest an exact pace in which a chemical compound will travel. It will matter in external forces as well as the median it is travelling through.

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2. Which of the following accurately pairs
My name is Ann [436]

Answer:

C. Electron-negative charge

Explanation:

The electron is subatomic particle that revolve around outside the nucleus and has negligible mass. It has a negative charge.

Symbol= e⁻

Mass= 9.10938356×10³¹Kg

It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.

He constructed the glass tube and create vacuum in it. He applied electric current between electrodes. He noticed that a ray of particles coming from cathode to wards positively charged anode. This ray was cathode ray.

Properties of cathode ray:

The ray is travel in straight line.

The cathode ray is independent of composition of cathode.

When electric field is applied cathode ray is deflected towards the positively charged plate.

Hence it was consist of negatively charged particles.

While neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.

Symbol of proton= P⁺

Symbol of neutron= n⁰

Mass of proton = 1.672623×10⁻²⁷ Kg

Mass of neutron = 1.674929×10⁻²⁷ Kg

An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.

All these three subatomic particles construct an atom.

8 0
3 years ago
1. Which of the following compounds is most likely to exist as a covalent molecule? O NaBr O KNO, O Bel, C O CH_NH2?​
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Answer:

nabeo

Explanation:

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3 years ago
The half-life of radon-222 is 3.8 days. How many grams of radon-222 remain
Ne4ueva [31]
I think it’s B but not 100% sure
3 0
3 years ago
What are advantages of specialization ​
nignag [31]

Answer:

ACE

Explanation:

Defined skill set: When we say advantages it is seen that it can be visualized during the early stages of one’s career.

Upward growth: Having a specific skill or being specialized in that work would also bring growth in that division. ...

Good package: A job specialization means a person is knowing how to do that work and complete it.

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Here is the answer for 1-11

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