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Tanya [424]
3 years ago
6

Which compound has ionic bonding? A. Cl2 B. HF C. CaO D. NO2

Physics
1 answer:
GrogVix [38]3 years ago
7 0

the answer is CaO because that's what my homework says is correct


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During the course of a demonstration the professor is called away. When he returns he finds a beaker of water that was at room t
Yanka [14]

Answer:

Either heat added or mechanical work done.

Explanation:

Since he found stirring rod on the desk and a cigarette lighter. This means that the beaker was probably either heated with the aid of fire from the lighter.

Also, the stirring rod could have been used to stir the water which will increase the kinetic energy which also means an increase in temperature.

Thus, it's either heat was added or mechanical work was done as a result of stirring.

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7777Answer:

Explanation:

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A chemist finds that when platinum is added to a reaction, the reaction speeds up. He thinks the platinum may be acting as a cat
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Measure the change in volume of the solution.

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3 years ago
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A proton is released in a uniform electric field, and it experiences an electric force of 2.04×10−14 N toward the south.
Lemur [1.5K]

Answer:

Part A:

E=127500N/C\\E=1.275*10^{5} N/C

Part B:

Option B (Towards the South)

Explanation:

Part A:

Magnitude if electric field E:

E=Force/charge

Force=2.04×10−14 N

Charge=1.6×10−19 C

E=\frac{2.04*10^{-14}}{1.6*10^{-19}} \\E=127500N/C\\E=1.275*10^{5} N/C

Part B:

Option B (Towards the South)

As electron is experiencing the force towards south,it means the direction of the electric field is towards the south because direction of field lines is from positive to negative, so proton is moving towards south it means negative charge is in south to which proton is attracted. So electric field is towards South.

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3 years ago
What is true of all particles of gas enclosed within a container?
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Theyre all in constant motion

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