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Maksim231197 [3]
3 years ago
7

What is a cylinder? Give an example of an object that's a cylinder.

Chemistry
2 answers:
amid [387]3 years ago
8 0
By definition a cylinder is a solid geometric figure with straight parallel sides and a circular or oval cross-section. A good example of a cylinder would be a soda can.
Sergio [31]3 years ago
3 0

Answer:

A cylinder is a type of shape kind of 3D or 2D

Examples:

Can of beans

Canned goods basically

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How many grams of HF are needed to react with 3.0 moles of Sn?
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Answer:

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Explanation:

Step 1:

We'll begin by writing the balanced equation for the reaction.

Sn + 2HF —> SnF2 + H2

Step 2:

Determination of the number of mole HF needed to react with 3 moles of Sn.

From the balanced equation above,

1 mole of Sn and reacted with 2 moles of HF.

Therefore, 3 moles Sn will react with = 3 x 2 = 6 moles of HF.

Step 3:

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Molar Mass of HF = 1 + 19 = 20g/mol

Mass of HF =..?

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Mass of HF = 6 x 20

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Therefore, 120g of HF is needed to react with 3 moles of Sn.

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