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dedylja [7]
3 years ago
9

Question 16

Chemistry
2 answers:
Liono4ka [1.6K]3 years ago
4 0

Answer:

Br

Explanation:

Bromine atoms tend to gain just one electron to get to a full octet, as Bromine is in Group VII.

Thepotemich [5.8K]3 years ago
3 0
Br i’m pretty sure! :)
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The most reactive metals are located at the a)top b)far-left c)far-right d)center of the periodic table.
Jlenok [28]

Answer:

Bottom left corner of the periodic table

Explanation:

The elements toward the bottom left corner of the periodic table are the metals that are the most active in the sense of being the most reactive. Lithium, sodium, and potassium all react with water, for example.

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3 years ago
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Precision Problems:
Lorico [155]

Answer:

Precision = 2.70 \± 0.1\ cm

Explanation:

Given

The data in the table

Required

Follow the steps appended to the question;

Step 1: Calculate the Mean or Average

Mean = Summation of lengths divided by number of teams;

Mean = \frac{2.65 + 2.75 + 2.80 + 2.77 + 2.60 + 2.65 + 2.68}{7}\ cm

Mean = \frac{18.9}{7}\ cm

Mean = 2.70\ cm

Step 2: Get The Range

Range = Highest - Lowest

Range = 2.80cm - 2.60cm

Range = 0.2\ cm

Step 3: Divide Range by 2

Approximate\ Range = \frac{1}{2}Range

Approximate\ Range = \frac{1}{2} * 0.2\ cm

Approximate\ Range = 0.1\ cm

Step 4: Determine the Precision

Precision = Average \± Approximate\ Range

Substitute 2.70 for Average and 0.1 for Approximate Range

Precision = 2.70 \± 0.1\ cm

4 0
3 years ago
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2 methyl groups (-CH3) on carbon atom number 1

Hope it helped!

7 0
4 years ago
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