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N76 [4]
3 years ago
5

What does the smoke in the tube prove scientifically?/

Chemistry
1 answer:
beks73 [17]3 years ago
4 0

Answer:

smokin tha zaza

Explanation:

trust me

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You carefully weigh out 20.00 g of CaCO3 powder and add it to 81.00 g of HCl solution. You notice bubbles as a reaction takes pl
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Answer:

The relevant equation is:

CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

Explanation:

1 mol of calcium carbonate can react to 2 moles of Hydrochloric acid to produce 1 mol of water, 1 mol of calcium chloride and 1 mol of carbon dioxide.

The formed CO₂ is the reason why you noticed bubbles as the reaction took place

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3 years ago
knowing that the reaction of potassium in water is extremely exothermic, what would be the problem with adding a large piece of
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Answer:

Explanation:

If the reaction is really exothermic (and it is) then the water would spatter all over the place. It would boil off if the container could hold it. It would also react according to the following reaction.

You are talking about a reaction like

2K + 2HOH = 2KOH + H2

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That which flows onward uniformly
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