2 years ago

Element with the largest electron cloud

Chemistry

2 answers:

Tasya [4]2 years ago

6 0

Jupiter Saturn Mars Earth Sun

Natasha_Volkova [10]2 years ago

4 0

Out of the answer choices, rubidium has the highest energy valence shell. With a single electron in the fifth energy level, krypton will have the highest number of energy levels of the group I elements listed.

kasama na po jan ang explenation

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A solution of ph 5 has _____ times more hydrogen ions than that of pure water.

Alik [6]

PH measures the concentration of hydrogen ions on the log 10 scale. Thus, a pH 5 solution has 2 order of magnitude difference from that of pure water, which has a pH of 7.

Therefore, $10^{2} = 100$ . A solution of pH 5 has 100 times more hydrogen ions that that of pure water.

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2 years ago

Testbank, Question 098 In the reaction between an alkyne and Na metal in liquid ammonia, the role of Na is as a(n) ___________.

KonstantinChe [14]

Answer:

d. reducing agent

Explanation:

Na acts as a reducing agent. A reducing agent is a substance whose function is to reduce or donate electrons to another, and by doing so it becomes oxidized. We can see the mechanism of the reaction in the image attached below.