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Alexxandr [17]
3 years ago
7

A brown rabbit is easily hunted and killed in an arctic ecosystem. Which would be expected to appear most often future generatio

ns born in the same ecosystem?
A. brown rabbits
B. gray rabbits
C. white rabbits
D. an even mix of brown, gray, and white rabbits
Chemistry
1 answer:
torisob [31]3 years ago
4 0

Answer:

D..................ig

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Calculate weight of anhydrous compound from remains upon dehydration of 2g copper sulphate pentahydrate
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Answer:

1.28 g

Explanation:

Mass of anhydrous compound/molar mass of anhydrous compound = mass of hydrated compound/ molar mass of hydrated compound

Mass of anhydrous compound = ?

Mass of hydrated compound = 2g

Molar mass of anhydrous compound= 160 g/mol

Molar mass of hydrated compound = 250 g/mol

x/160 = 2/250

250x = 2 ×160

x= 2 × 160/250

x= 1.28 g

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Identify the oxidizing and reducing agent in the following reaction, and determine which element is oxidized and which is reduce
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Answer:

Explanation:

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Here oxidation number of Fe is increased from +2 to +3 , so Fe is oxidised .

The oxidation number of Cl is reduced from + 4 to +3  so Cl is reduced .

So ClO₂(aq) is oxidising agent and Fe⁺²(aq) is reducing agent .

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A solution has a [OH−] of 1 x 10−12. What is the pOH of this solution?<br> 2<br> 7<br> 10<br> 12
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