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motikmotik
3 years ago
10

Which of the following is true about an object falling on Earth?

Chemistry
2 answers:
Alexus [3.1K]3 years ago
7 0
C I’m pretty sure it’s C hope this helps
Slav-nsk [51]3 years ago
3 0
C. The force of air resistance acts in the same direction as the force of gravity
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7nadin3 [17]
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3 0
3 years ago
2. Hydrogen gas at a temperature of 22.0°C that is confined in a 5.00L cylinder exerts a pressure of 4.20atm. If the gas is rele
Umnica [9.8K]

Answer: n∗R=22+273.15/4.2∗5n

P2=n∗R∗T2/V2=n∗R∗33.6+273.15/10

Explanation:

4 0
3 years ago
What is the density of a liquid that has a volume of 20.0 ml and a mass of 330 grams?
Dmitry_Shevchenko [17]
Density=mass/volume
density=330/20
density=16.5g/ml
7 0
3 years ago
If 75.8 grams of Ca(OH)2 were dissolved in enough water to make a solution with a total volume of 1.20 liters, what would the mo
schepotkina [342]
The molarity of the solution is calculated by dividing the number of moles of the solute, in moles, by the total volume of the solution, in liters. 

The molar mass of calcium hydroxide, Ca(OH)2 is calculated below.

     m = molar mass Ca + 2(molar mass O) + 2(molar mass H)

Substituting,
     m = 40 g/mol + 2(16 g/mol) + 2(1 g/mol)
      m = 74 g/mol

To get the number of moles Ca(OH)2 in 75.8 grams,
     n = (75.8 grams)(1 / 74 g/mol) = 1.024 moles

The molarity, M, is therefore,
           M = (1.024 moles Ca(OH)2) / (1.2 L)
               M = 0.854 M

<em>Answer: 0.854 M</em>
7 0
3 years ago
Read 2 more answers
in part two of trifles, which of the following images mist reinforces the theme of loneliness that exist throughout the play?
Snezhnost [94]
Answer is: in part two of trifles, the hollow in which the Wright home sat <span>reinforces the theme of loneliness that exist throughout the play.
</span>Trifles<span> is a </span>one-act play<span> by </span>Susan Glaspell. Susan Glaspell<span> (1876 – 1948) was an American playwright, novelist, journalist and actress. </span>
6 0
3 years ago
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