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lesya692 [45]
3 years ago
10

Which two elements have the most similar chemical properties

Chemistry
1 answer:
prisoha [69]3 years ago
5 0

Answer:

This is because their atoms have the same number of electrons in the highest occupied energy level. Li lithium and K potassium both belong to first group (alkali metals) and thus have similar chemical properties.

Explanation:

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3 0
3 years ago
A chemical reaction can theoretically produce 137.5 grams of product, but in actuality 112.9 grams are
Butoxors [25]
<h3>Answer:</h3>

82.11%

<h3>Explanation:</h3>

We are given;

  • Theoretical mass of the product is 137.5 g
  • Actual mass of the product is 112.9 g

We are supposed to calculate the percentage yield

  • We need to know how percentage yield is calculated;
  • To calculate the percentage yield we get the ratio of the actual mass to theoretical mass and express it as a percentage.

Thus;

% yield = (Actual mass ÷ Experimental mass) × 100%

            = (112.9 g ÷ 137.5 g) × 100%

            = 82.11%

Therefore, the percentage yield of the product is 82.11 %

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How many significant figures does the number have?<br> 9,000,100
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5 Significant Figures

Explanation:

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Which color of white light bends the most when it is refracted by a prism?
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Insects often get stuck in the sap of ancient trees. The sap along with the insect inside harden forming a fossil. What kind of
shepuryov [24]
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