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Ber [7]
3 years ago
6

Calculate the weighted average

Chemistry
1 answer:
padilas [110]3 years ago
3 0
Of what?
Attach a link or pic 
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What two types of evidence are used to classify organisms
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The two types of evidence are used to classify organisms are micro and organic
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4 years ago
Which has the strongest intermolecular bonds? liquid gas solid water
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It would be solid
hope this helps
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4 years ago
A gas has a volume of 300 mL in a rigid container at 50oC and 1.75 atm. What will be its pressure at 100K?
eduard

Answer:

Its pressure will be 0.54 atm at 100 K.

Explanation:

Gay-Lussac's law indicates that, as long as the volume of the container containing the gas is constant, as the temperature increases, the gas molecules move faster. Then the number of collisions with the walls increases, that is, the pressure increases. That is, the pressure of the gas is directly proportional to its temperature.

Gay-Lussac's law can be expressed mathematically as the quotient between pressure and temperature equal to a constant:

\frac{P}{T} =k

Studying two different states, an initial state 1 and a final state 2, it is satisfied:

\frac{P1}{T1} =\frac{P2}{T2}

In this case:

  • P1= 1.75 atm
  • T1= 50 °C= 323 K (being 0 C=273 K)
  • P2= ?
  • T2= 100 K

Replacing:

\frac{1.75 atm}{323 K} =\frac{P2}{100 K}

Solving:

P2= 100 k*\frac{1.75 atm}{323 K}

P2= 0.54 atm

<u><em>Its pressure will be 0.54 atm at 100 K.</em></u>

8 0
3 years ago
You have a board, wood blocks, and a toy car. Your goal is to build a ramp that sends the car as far across the floor as possibl
lakkis [162]

Answer:

<h3><u><em>The board should be placed at about an 80-88 degrees angle. </em></u></h3>

<u><em>Explanation:</em></u>

<u><em>This will speed the car up and increase its speed as going down the ramp.</em></u>

5 0
3 years ago
Read 2 more answers
Light cannot pass through solid matter
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Light cannot pass though matter BUT, matter is technically atoms, which are mostly space with a few, moving objects.
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4 years ago
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