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Ksju [112]
2 years ago
11

Ughhh ughh ughhhhhelppp​

Chemistry
1 answer:
lions [1.4K]2 years ago
3 0

Answer:

Explanation:

one is True,   an electro magnet is only magnetic because of current producing the magnetic field.  

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3 years ago
The value of Zeff for a valence electron in an atom of silicon is?
lutik1710 [3]

Zeff is the effective nuclear charge wherein, Z resembles the number of protons in the nucleus while S corresponds to the number of non-valence electrons.

Zeff = Z - S

Silicon has 14 protons; its electron configuration is [Ne] 3s2 3p2. Its non-valence electrons is in the n = 1 and n =2 shells. There are 2 electrons in n = 1 and 8 in n = 2, so there are a total of 10 non-valence electron.

<span><span>Z<span>eff</span></span>= 14−10= 4</span>

So, the answer is 4.
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3 years ago
Molar mass is measured in units of
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Which of the following measurements is equal to 2.3 dL?
Nonamiya [84]
What are the following measurements?
6 0
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Which elements above will form cations? List them below.
cricket20 [7]

Answer:

Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form anions (e.g. oxygen, carbon, sulfur).

Explanation:

Examples: Sodium (Na+), Iron (Fe2+), Ammonium (NH4

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