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gayaneshka [121]
4 years ago
11

Chromium loses three electrons what is its electron configuration

Chemistry
1 answer:
vfiekz [6]4 years ago
8 0
Cr(3+):
1s² 2s² 2p⁶ 3s² 3p⁶ 3d³
[Ar] 3d³

:)
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The percentage by mass of br in the compound albr3 is closest to:
ozzi

Answer:

Explanation:

1 Al = 26.98 AMU

3 Br = 239.7 AMU

AlBr3 = 266.69 AMU

Al = (26.98)/(266.69)  = 10.1%

Br3 = (239.7)/(266.69)  = 89.9%

5 0
3 years ago
What is its molecular formula?​
uysha [10]

Answer:

C₆H₈O₆

Explanation:

The molecular formula of given compound is C₆H₈O₆. Because there are six carbon, six oxygen and eight hydrogen atom present in this compound.

The molecular weight of following compound is,

C₆H₈O₆

C = 12 amu

H = 1 amu

O = 16 amu

C₆H₈O₆ = 12×6 + 1×8 + 16×6

C₆H₈O₆ = 72 +8 + 96

C₆H₈O₆ = 176 g/mol

7 0
3 years ago
How is technology useful and how is it harmful
Lelu [443]

Explanation:

The aggregation of methods used in order to accomplish a goal is called technology.

Whether technology is used to accomplish a goal which society does not deem acceptable then the goal is bad. The same technology can be used to do good. So, the question whether technology is harmful or useful depends on the goal a person wasts to acheive.

Let us take an example

The internet is one of the greatest discoveries of mankind which allows people access to unlimited information. It can be used for a variety of different services such buying goods and services. However, the internet is also a technology that facilitates illegal activities that circumvents government intervention. This way of technology being used is harmful.

8 0
3 years ago
Which statement describes where oxidation and reduction half-reactions occur in an operating electrochemical cell?(1) Oxidation
emmainna [20.7K]
The answer is (3), oxidation occurs at the anode and reduction occurs at the cathode. That's because the oxidation reaction can lose electrons and reduction can gain electrons.
3 0
4 years ago
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During what phase of mitosis do the chromosomes pull apart and begin to form two new cells?
PIT_PIT [208]

Answer: Anaphase—easy way to remember is thinking anaphase=apart

Explanation:

8 0
4 years ago
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