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ki77a [65]
3 years ago
11

18. Focal length is a length which lies between

Chemistry
1 answer:
Jet001 [13]3 years ago
7 0

Answer:

Lens and focal point is the correct answer.

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A. Which line represents travel at the fastest speed? Justify your answer.__
Vikentia [17]

Answer:

Which line represents travel at the fastest speed? Justify your answer.__

b. Describe the line that should be added for an object that is not moving with respect to the chosen reference point.__

Answer the question using 5 complete sentences and the vocabulary terms; velocity, position, and distance

Which line represents travel at the fastest speed? Justify your answer.__

b. Describe the line that should be added for an object that is not moving with respect to the chosen reference point.__

Answer the question using 5 complete sentences and the vocabulary terms; velocity, position, and distance

Explanation:

5 0
2 years ago
How many atoms of fluoride are there in one molecule of nitrogen trifluoride?
Helga [31]

Answer:

there are three Fluorine atom. This is because Nitrogen give 3 electron away but fluorine can only take 1. So nitrogen gives 1 neutron to 3 fluorine each which makes it a stable compound

6 0
3 years ago
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The angle between the horizon and the sun is <br>a.large <br>b.small<br>at both sunrise and sunset​
Inessa [10]

Answer: b

Explanation:

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2 years ago
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Why are gas bubbles not always a sign of a chemical change?
Mekhanik [1.2K]

Answer: its a reaction

Explanation:

like coke its a reaction between gas and oxygen

3 0
2 years ago
Susana heats up a sample of red crystals. While the sample is being heated, a gas is released and a blue powder is left after th
frutty [35]

Answer: Compound

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Element is a pure substance which is composed of atoms of similar elements.It can not be decomposed into simpler constituents using chemical reactions.Example: Copper Cu

Compound is a pure substance which is made from atoms of different elements combined together in a fixed ratio by mass.It can be decomposed into simpler constituents using chemical reactions. Example: water H_2O

2H_2O\rightarrow 2H_2+O_2

Thus as it give that  the red sample on being heated, a gas is released and a blue powder is left after the heating. Thus the given sample is a compound.

5 0
2 years ago
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