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jarptica [38.1K]
2 years ago
6

Select the correct answer.

Chemistry
2 answers:
solong [7]2 years ago
6 0

Answer:

It determines how difficult it is to start the reaction.-B.

vlada-n [284]2 years ago
3 0

B. it determines how difficult it is to start the reaction

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It takes 90 N of force to lift a box of books off my smiths table. If you can only leave the box 25% of the way up, how many new
leva [86]

Answer:3.6 I think sorry if wrong

Explanation:

90 divided by 25

4 0
2 years ago
The element born, b, has an atomic mass of 10.81 amu according to the periodic table. however, no single atom of boron has amass
klio [65]
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You can count it by yourself using formula

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2 years ago
When does raising the temperature of a gas increase its pressure?
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A.) temperature

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7 0
3 years ago
What volume will be occupied by 33.0 grams of CO2 at 500 torr and 27 °C?
wlad13 [49]

Answer:

V = 27.98 L

Explanation:

Given data:

Mass of CO₂ = 33.0 g

Pressure = 500 torr

Temperature = 27°C

Volume occupied = ?

Solution:

Number of moles of CO₂:

Number of moles = mass/molar mass

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Number of moles = 0.75 mol

Volume of CO₂:

PV = nRT

R = general gas constant = 0.0821 atm.L/ mol.K  

Now we will convert the temperature.

27+273 = 300 K

Pressure = 500 /760 = 0.66 atm

By putting values,

0.66 atm×V = 0.75 mol × 0.0821 atm.L/ mol.K  × 300 K

V = 18.47 atm.L/0.66 atm

V = 27.98 L

4 0
2 years ago
Why does water have a much higher boiling point than methane even though water (H20) and methane (CH4) molecules are approximate
PSYCHO15rus [73]

Answer:

Water has a higher boiling point because the hydrogen bonds that form water molecules are stronger than the Van der Waals interactions among methane molecules, therefor more energy must be provided in order to break the hydrogen bonds and allow the water molecules to escape the liquid state.

Explanation:

5 0
2 years ago
Read 2 more answers
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