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olchik [2.2K]
2 years ago
13

Provided is a list of five different substances. How many of these substances are elements?.

Chemistry
1 answer:
Lina20 [59]2 years ago
6 0

Answer:

118

Explanation:

Of these 118 elements, 94 occur naturally on Earth. Six of these occur in extreme trace quantities: technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; and plutonium, number 94.

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Define chemical change and give an example
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Definition-A formation of new chemical substances.
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4 0
3 years ago
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In the lab, you are given a metal ball. You measure the mass of the ball to be 28 g. You place the ball in a graduated cylinder
KIM [24]

Answer:

Density = 8.75ml

Explanation:

Density = Mass / Volume

In this problem ...

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8 0
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(b) that is brittle,​
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Explanation:

huh??? ?????????

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Lab report for physical and chemical changes??!
slega [8]

Answer:

[See Below]

Explanation:

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~<em>Hope this helps Mate. If you need anything feel free to message me.</em>

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