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exis [7]
3 years ago
15

A little boy is playing with a plastic water bottle. He blows air into the bottle to make a whistling sound. Then, he wedges a p

lastic ball into the bottle to make a rattle. But the ball is too big—it gets stuck in the mouth of the bottle! The little boy panics and runs to his big brother for help. Luckily, his older brother just studied the principle of Boyle's law. Based on what he learned, how will he get the ball out of the bottle? by pushing down on the bottle to increase the air pressure inside the bottle , by pushing down on the bottle to increase the air pressure inside the bottle by placing the bottle in the freezer to increase the air pressure inside the bottle , by placing the bottle in the freezer to increase the air pressure inside the bottle by pushing down on the bottle to decrease the temperature of the air in the bottle , by pushing down on the bottle to decrease the temperature of the air in the bottle by placing the bottle in the freezer to decrease the mass of the air inside the bottle
Chemistry
1 answer:
Harman [31]3 years ago
6 0

Answer: its by pushing down on the bottle to increase the air pressure

Explanation: because if there will be enough air, there might be a possibiity it will pop out

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If a object has a mass of 10 kilograms, how much does it weigh in newtons?
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6 0
3 years ago
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Reactives -> Products

CuO and water are products.

I found this reaction which has CuO and water as products: decomposition of Cu(OH)2.

Cu(OH)2 -> CuO + H2O

Stoichiometry calculus involve the mole proportions you can see in the reaction: When 1 mole of Cu(OH)2 reacts, 1 mole of CuO and 1 mole of H2O are formed.

Considering the molar masses:

Cu(OH)2 = 83.56 g/mol

CuO = 79.545 g/mol

H2O = 18.015 g/mol

Then: When 83.56 g of Cu(OH)2 react, 79.545 g of CuO and 18.015 g H2O are formed.

You should use that numbers in the rule of three:

79.545 g CuO __________18.015 g water

3.327 g CuO__________ x =3.327*18.015 /79.545 g water 

x= 0.7535 g water




3 0
3 years ago
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