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Alexxandr [17]
2 years ago
12

Which statement is correct for the element of proton number 19?

Chemistry
1 answer:
BlackZzzverrR [31]2 years ago
8 0

Answer:

D

Explanation:

From periodic table : proton number 19  corresponds to K  (potassium)

  which is very reactive with water

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Consider the volume of gas collected in the trial in Experiment 2 for Ni at
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Answer:

Explanation:

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Lithium and nitrogen react in a combination reaction to produce lithium nitride: 6Li(s) + N2(g) → 2Li3N(s) How many moles of lit
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Answer:

12.5 g of Li are needed in order toproduce 0.60 moles of Li₃N

Explanation:

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Ratio is 2:6

2 moles of nitride were produced by 6 moles of Li

Then, 0.6 moles of nitride were produced by (0.6 .6)/ 2 = 1.8 moles of Li

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4 years ago
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Answer:

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3 0
2 years ago
Perform the following mathematical operation, and report the answer to the correct number of significant figures. 0.34 x 0.568=?
slavikrds [6]

The correct answer to the problem is 0.193 which is three significant figures.

<h3>What are significant figures?</h3>

The term significant figures has to do with the figures that have a mathematical meaning. We know that the result has to correspond to the highest number of significant figures.

Hence, If we multiply 0.34 x 0.568 the result ought to be recorded as 0.193 which is three significant figures.

Learn more about significant figures:brainly.com/question/14804345

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Which one is you fav one
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