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yulyashka [42]
2 years ago
9

Which would lower the reaction rate?

Chemistry
1 answer:
Blizzard [7]2 years ago
7 0

Answer:

D. Decreasing the temperature of the system

Explanation:

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0.65 moles of O2 originally at 85°C is cooled
soldier1979 [14.2K]

Answer:

2.09 atm

Explanation:

We can solve this problem by using the equation of state for an ideal gas, which relates the pressure, the volume and the temperature of an ideal gas:

pV=nRT

where

p is the pressure of the gas

V is its volume

n is the number of moles

R is the gas constant

T is the absolute temperature

In this problem we have:

n = 0.65 mol is the number of moles of the gas

V = 8.0 L is the final volume of the gas

T=40C+273=313 K is the temperature of the gas

R=0.082 atm L mol^{-1} K^{-1} is the gas constant

Solving for p, we find the final pressure of the gas:

p=\frac{nRT}{V}=\frac{(0.65)(0.082)(313)}{8.0}=2.09 atm

8 0
4 years ago
What are lower and higher energy levels.
kozerog [31]

Answer:

If an atom, ion, or molecule is at the lowest possible energy level, it and its electrons are said to be in the ground state. If it is at a higher energy level, it is said to be excited, or any electrons that have higher energy than the ground state are excited

Explanation:

pls mark brainliest

8 0
3 years ago
Describe one way the respiratory and nervous system work together​
DiKsa [7]
<h2>♨ANSWER♥</h2>

The respiratory system supplies oxygen to the blood and removes carbon dioxide. The brain monitors respiratory volume and blood gas levels. The brain regulates respiratory rate.

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7 0
2 years ago
Please hlep me on this 2 questions
DaniilM [7]
9. Well it never snows on the coast so I would say C. Warmer. 10. NC is on the east coast so for water to move towards it the water would be going A. West :)
4 0
3 years ago
Read 2 more answers
Write the empirical formula for at least four ionic compounds ca2+.v5+,f-,s2
Vesna [10]
Using these Elements. Here would be the 4 ionic compounds.

CaF2
VF5
CaS
V2S5
8 0
4 years ago
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