What is the best description of the constructive interference of light?

Chemistry

2 answers:

Novay_Z [31]2 years ago

8 0

Answer:

Explanation:

I got this answer on the test :)

Alex777 [14]2 years ago

5 0

Answer: The crest and trough of two waves intersect.

Explanation:

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How can etymologies help you know the meanings of scientific terms ?

My name is Ann [436]

When you understand the etymologies of scientific terms, they make a lot of sense in relation to the term. The etymologies themselves often serve as a reasonably okay definition for the term.

Here's an example, many scientific terms have Greek or Latin etymologies. Take "archaeology" (for an example) Etymologically, it consists of two Greek words "archaeo" (old, ancient) and "logos" (a word, discourse, or study). Therefore, etymologically "archaeology" means "the study of old/ancient things."

hope this helps!

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3 years ago

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In the lewis structure of ch3oh, how many lone pairs of electrons are there? in the lewis structure of ch3oh, how many lone pair

Lunna [17]

The structure of Methanol (CH₃OH) is shown below. This structure contains 2 lone pair of electrons on oxygen (highlighted red). Electronic configuration of oxygen is,

Oxygen = 8 = 1s², 2s², 2px², 2py¹, 2pz¹

There are six electrons in valence shell of oxygen, among these six electrons two electrons are unpaired and involved in forming covalent bond with hydrogen and carbon, while remaining 4 electrons in pair (i.e. 2s², 2px²) exists as lone pairs.

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4 years ago

Why does iron not fit the pattern in column 7

son4ous [18]

Iron doesn't fit because it doesn't have enough atoms or protons in its nucleus so there for it belongs in column 2. <span />

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4 years ago

A student mixed some yellow sulfur powder with some iron filings. She was able to take the iron out of the sulfur by using a mag

Kay [80]

Answer: Chemical change

Explanation:

Physical change is a change in which there is no rearrangement of atoms and thus no new substance is formed. There is only change in physical state of the substance. The change can be reversed using physical methods.

Chemical change is a change in which there is rearrangement of atoms and thus new substance is formed. There may or may not be a change in physical state. The change can only be reversed using chemical methods.

Thus when iron and sulfur are heated in a test tube, the chemical change occurs and thus lead to formation of new substances which could not be separated using magnet.

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3 years ago

a closed flask of air (0.250 L) contains 5.00 "puffs" of particles. The pressure probe on the flask reads 93 kPa. A student uses

Sergio039 [100]

Answer: New pressure inside the flask would be 148.8 kPa.

Explanation: The combined gas law equation is given by:

$PV=nRT$