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Viefleur [7K]
4 years ago
15

PLEASE HELP!

Chemistry
2 answers:
Firlakuza [10]4 years ago
7 0

Answer:

The number of particles able to undergo a chemical reaction is less than the number that is not able to.

Explanation:

took test

Flauer [41]4 years ago
4 0

Answer:

option 2 and 4 are most likely to happen but I could be wrong

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An egg is placed in a graduated cylinder to determine its volume. The following data are obtained. What is the volume of the egg
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If egg is dipped in cylinder then the volume of egg will be difference in the volumes before dipping egg (initial volume) and volume after dipping egg (final volume)

Volume of egg= 58.5-50.0 = 8.5 mL

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3 years ago
Which statement can be made about the above passage
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Answer:

Explanation:

whats the qustion?

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A reaction of importance in the formation of smog is that between ozone and nitrogen monoxide described by O 3 ( g ) + NO ( g )
Aleksandr [31]

Answer:

(a) 7.11x10⁻⁴ M/s

(b) 2.56 mol.L⁻¹.h⁻¹

Explanation:

(a) The reaction is:

O₃(g) + NO(g) → O₂(g) + NO₂(g)   (1)

The reaction rate of equation (1) is given by:

rate = k*[O_{3}][NO]     (2)

<u>We have:</u>

k: is the rate constant of reaction = 3.91x10⁶ M⁻¹.s⁻¹

[O₃]₀ = 2.35x10⁻⁶ M

[NO]₀ = 7.74x10⁻⁵ M

Hence, to find the inital reacion rate we will use equation (2):

rate = k*[O_{3}]_{0}[NO]_{0} = 3.91 \cdot 10^{6} M^{-1}s^{-1}*2.35\cdot 10^{-6} M*7.74 \cdot 10^{-5} M = 7.11 \cdot 10^{-4} M/s  

Therefore, the inital reaction rate is 7.11x10⁻⁴ M/s

(b) The number of moles of NO₂(g) produced per hour per liter of air is:

t = 1 h

V = 1 L

\frac{\Delta[NO_{2}]}{\Delta t} = rate

\frac{\Delta[NO_{2}]}{\Delta t} = 7.11 \cdot 10^{-4} M/s*\frac{3600 s}{1 h} = 2.56 mol.L^{-1}.h{-1}

Hence, the number of moles of NO₂(g) produced per hour per liter of air is 2.56 mol.L⁻¹.h⁻¹

I hope it helps you!                                

5 0
3 years ago
What scientist developed a model of the atom that looked like a nucleus surrounded by electrons
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<span>Ernest Rutherford was the scientist that developed a model of the atom that looked like a nucleus surrounded by electrons.

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739 degrees K equals 465.85 degrees Celcius.
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