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brilliants [131]
2 years ago
15

Which Group is in the leftmost column on the periodic table?

Chemistry
2 answers:
Naddika [18.5K]2 years ago
5 0

Answer:

C. Alkali metals

Explanation:

When looking at the left side of the periodic table, you'll find the alkali metals, which is a subgroup of Metals

svp [43]2 years ago
4 0
Alkali metals. Hope this helps
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A seashell, composed largely of calcium carbonate, is placed in a solution of HCl. As a result, 1700 mL of dry CO2 gas at STP is
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7.7g CaCo3

Explanation:

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My day was good!! Thank you so much for asking :)

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8 0
3 years ago
What did you observe in the reaction of phosphoric acid with the freshly cleaned zinc when compared with a piece just taken out
mash [69]

Answer:

The classification is mentioned below for the particular topic.

Explanation:

  • Whether we position 2 different beakers in such a single beaker through one clean edge of zinc-containing H₃Po₄ and another one with unflushed zinc.  
  • The zinc that was washed set to release hydrogen gas way quicker, unlike unventilated zinc.  

⇒      3Zn+2H_{3}Po_{4}\rightarrow Zn_{3}(Po_{4})_{2}+3H_{2}

  • Since fresh zinc complicates the cycle since, as a comparison to polluted zinc, there was little contact with either the reaction.
6 0
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Which of the following characteristics do Element I and Element I have in common?
Nesterboy [21]

Answer:

Option C. The same number of energy levels.

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From the diagram given above, element (i) belong to group 2 while element (ii) belong to group 6.

Also, both element i and ii belong to the same period (i.e period 4). This simply means that both element i and ii have the same number of energy levels.

NOTE: Elements in the same period have the same number of shells of electrons which simply means they have the same energy levels.

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3 years ago
What increases OH ions​
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Answer:

A base.

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Basic solutions give OH- ions.

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