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Ber [7]
4 years ago
8

you push a heavy a crate and at first it doesnt move, you push harder and it starts to move but you still need to exert some for

ce to keep it moving at a constant velocity, why
Chemistry
1 answer:
choli [55]4 years ago
8 0
Because the force of gravity is pulling down on the object.
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Is milk a mixture, solution, or both?
lara [203]
It is both. It is a mixture because it has two or more things mixed in it. It is a solution, because all of the components and things mixed in the milk are uniform and milk isn't chunky or discolored because of that.
Hope this helps. 
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3 years ago
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Question 10 of 25
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Answer: 0

Explanation: A P E X

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A mixture of 0.220 moles CO, 0.350 moles H2 and 0.640 moles He has a total
emmasim [6.3K]

Answer:

P(H₂) = 0.8533 atm

Explanation:

n(CO) = 0.220 mole

n(H₂)  = 0.350 mole

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_______________

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6 0
3 years ago
A gas occupies a volume of 202 ml at a pressure of 505 torr. To what pressure must the gas be subject in order to change the vol
UNO [17]

Answer:

1569 torr

Explanation:

Assuming ideal behaviour and constant temperature, we can solve this problem by using <em>Boyle's law</em>, which states:

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Where in this case:

  • V₁ = 202 mL
  • P₁ = 505 torr
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We <u>input the data given by the problem</u>:

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And <u>solve for P₂</u>:

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