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Alexus [3.1K]
4 years ago
13

A molecule of ammonia (NH3) contains

Chemistry
1 answer:
mafiozo [28]4 years ago
8 0
A molecule of ammonia clearly contains 1 nitrogen (N) atom and 3 of the hydrogen (H) atoms combined by sharing of the valence electrons of the atoms. Ammonia is a colorless gas and is usually characterized by its pungent odor. 
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Explain why almunium is often used for long distance over head electirc cables ( high volitage wires)​
abruzzese [7]

Answer:

lower price and higher voltage capacity for the weight.

5 0
3 years ago
The speed of light in a vacuum is 2.998 x 108 m/s. How long does it take for light to circumnavigate the Earth, which has a circ
Luba_88 [7]

Answer:

0.13 s

Explanation:

We'll begin by converting 24900 mile to metres (m). This can be obtained as follow:

1 mile = 1609.344 m

Therefore,

24900 mile = 24900 mile × 1609.344 m / 1 mile

24900 mile = 4.01×10⁷ m

Finally, we shall determine the time taken for light to circumnavigate the Earth, this can be obtained as follow:

Distance = 4.01×10⁷ m

Speed = 2.998×10⁸ m/s

Time =?

Speed = distance / time

2.998×10⁸ = 4.01×10⁷ / time

Cross multiply

2.998×10⁸ × time = 4.01×10⁷

Divide both side by 2.998×10⁸

Time = 4.01×10⁷ / 2.998×10⁸

Time = 0.13 s

Thus, it will take 0.13 s for light to circumnavigate the Earth.

5 0
3 years ago
What is the Chemical Composition of the Element of Mercury in the <br> Periodic Table of Elements?
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A reaction that proceeds more slowly than
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3 years ago
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