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svetoff [14.1K]
3 years ago
11

Help please i tried to do lab but i couldn’t figure it out

Chemistry
1 answer:
andreyandreev [35.5K]3 years ago
7 0
D. paper d, paper c, paper a, paper b
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Are moles inversely related to volume
astraxan [27]

Answer:

yes

Explanation:

A law that states that at constant temperature, the volume of a fixed amount of a gas is inversely proportional to its pressure. ... A law that states that at constant temperature and pressure, the volume of a sample of gas is directly proportional to the number of moles of gas in the sample.

5 0
4 years ago
What is the correct electron configuration for copper?
kakasveta [241]

Answer:

[Ar] 3d10 4s1

Explanation:

The correct electronic configuration of copper is [Ar] 3d10 4s1

Copper has atomic number 29 and due to the stability of half filled or fully filled orbitals or shells, the electrons from the 4s jumps to the 3d and makes the 3d shell contain 10 electrons.

This is what I mean:

Cu = Ar 4s2 3d10 is the expected configuration of copper when we follow the principle of filling the various orbitals that is the s, p, d, f orbitals.

But because we write 3d before writing 4s, we have Ar 3d10 4s2. Instead of this configuration becoming the correct one, an electron from the 4s orbital jumps to the 3d orbital to complete the orbital giving the electrons in the 3d orbital 10.

So therefore the correct configuration is Ar 3d10 4s1

4 0
3 years ago
State why vulcanologist make predications about when a volcano will erupt
olasank [31]

Answer:

They want to know how long it has been since it last erupted.

Explanation:

Scientists study a volcano's history to try to predict when it will next erupt.  They also want to know the time span between its previous eruptions

5 0
3 years ago
What type of ion might sodium form? Justify your answer.
tino4ka555 [31]
The type of ion that the sodium atom form is a cation. The term cation is used to refer to ions which have positive charges. The valence electron of sodium is one and in order to obtain the octet, it will donate that electron to some other atoms, making its charge positive. 
8 0
3 years ago
Which group on the periodic table contains only metals?
horsena [70]
Group 1 & Group 2 contains only metals

Hope this helps!
3 0
3 years ago
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