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labwork [276]
2 years ago
10

Question 6 (4 points)

Chemistry
2 answers:
pishuonlain [190]2 years ago
8 0

Answer:

20.9%

Explanation:

I took the test i hope this helps:)

Afina-wow [57]2 years ago
5 0

Answer:

B, "20.9%"

Explanation:

I also took the test.

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In naming the compound PCl5, the prefix used with the second element is ____________________.
Oksanka [162]

Answer:

\boxed {\boxed {\sf Hepta}}

Explanation:

We are given the formula:

PCl_5

This is a molecular formula, because it contains nonmetals.

1. Name the first element

The first element is phosphorous (P). Since this is the first element and there is only one, we don't need a prefix.

  • Phosphorous

2. Second element

The second element is chlorine (Cl). It has a subscript of 5, so we must add the prefix of <u>hepta</u>-.

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Add the ending of -ide.

  • Phosphorous heptachloride

The prefix used for the second element is hepta. The compound name is phosphorous heptachloride.

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2 years ago
State of matter is the least In general, for any material, the compressible. ​
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Answer:

Bulk matter can exist in three states: gas, liquid, and solid. Gases have the lowest density of the three, are highly compressible, and fill their containers completely

Explanation:

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3 years ago
How can you tell if a chemical is a metallic bond?
coldgirl [10]

Answer: In a metallic bond, each metal atom is surrounded by lots of other metal atoms, and they all share their valence electrons. When two oxygen atoms bond, they become a molecule and don't interact much with other molecules.

Explanation:

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