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DanielleElmas [232]
3 years ago
7

True or false.  As a wave travels through a given material its velocity changes.

Chemistry
2 answers:
cricket20 [7]3 years ago
8 0

Answer:

false

Explanation:

i took the test and got it right

Komok [63]3 years ago
3 0

Answer:

true

Explanation:

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4 Hydrogen Atoms should be correct. Because the 4 infront of it signifies the amount of hydrogen. It would also be 4 hydrogen atoms if it were written as H4N3, because the 4 is still around the H (as long as the 4 is under scored)
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Lead (11) oxide dissolves in both
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bacic

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Which of the following best explains how the results of Rutherford’s experiment affected Thomson’s widely-accepted atomic model?
hichkok12 [17]

Explanation:

Thomson's suggested the plum pudding model of the atom in which the atomic space is made up of electrons surround by positive charges.

Rutherford in his gold foil experiment revised the plum pudding model of the atom;

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2 years ago
how can you tell if a compound is covalent or ionic from the formula, and how each is named differently?
kumpel [21]

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ionic compounds contain a metal and a non metal

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Explanation:

Each type of compound is named according to different rules.

5 0
3 years ago
Can you identify a chemical only by knowing its physical properties?
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Any characteristic that can be determined without changing the substance's chemical identity. chemical property: Any characteristic that can be determined only by changing a substance's molecular structure

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