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3 years ago

Hows ur guys day??????????????????????????????????????????????????????????????????????????

Chemistry

2 answers:

bulgar [2K]3 years ago

5 0

Answer:

Its been pretty good.

Explanation:

Thanks for asking

zaharov [31]3 years ago

5 0

Answer:

Could be better....

Explanation:

Thanks and how about you?

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How is thermal energy transferred during conduction? Check all that apply.

LenaWriter [7]

Answer:

the second statement,the third&the fifth

7 0

3 years ago

Read 2 more answers

The rate law of the reaction NH3 + HOCl → NH2Cl + H2O is rate = k[NH3][HOCl] with k = 5.1 × 106 L/mol·s at 25°C. The reaction is

SIZIF [17.4K]

Answer:

40% of the ammonia will take 4.97x10^-5 s to react.

Explanation:

The rate is equal to:

R = k*[NH3]*[HOCl] = 5.1x10^6 * [NH3] * 2x10^-3 = 10200 s^-1 * [NH3]

R = k´ * [NH3]

k´ = 10200 s^-1

Because k´ is the psuedo first-order rate constant, we have the following:

b/(b-x) = 100/(100-40) ; 40% ammonia reacts

b/(b-x) = 1.67

log(b/(b-x)) = log(1.67)

log(b/(b-x)) = 0.22

the time will equal to:

t = (2.303/k) * log(b/(b-x)) = (2.303/10200) * (0.22) = 4.97x10^-5 s

6 0

3 years ago

A gas is contained in a thick-walled balloon. When the pressure changes from 39.1 bar to 87.0 bar the volume changes from blank

lidiya [134]

Answer: -

1.34 L

Explanation: -

Initial Pressure P 1 = 39.1 bar

Initial Temperature T 1 = 643 K

Let the initial volume be V 1.

Final pressure P 2 = 87.0 bar

Final temperature T 2 = 525 K.

Final volume V 2 = 0.492 L

Using the equation

$\frac{P1 V 1}{T1} = \frac{P 2 V 2}{T2}$

$V 1 = \frac{P2 V2 T1}{P 1 T2}$

Plugging in the values

We have

V 1 = 87 bar x 0.492 L x 643 K / (39.1 bar x 525 K)

= 1.34 L

Thus, a gas is contained in a thick-walled balloon. When the pressure changes from 39.1 bar to 87.0 bar the volume changes from 1.34 L to 0.492L and the temperature changes from 643K to 525K

4 0

4 years ago

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You slide the copper bar to the right and at time t = 0 you release the bar when it is a distance x from the right end of the ap

Misha Larkins [42]

I dont thimk their is a question. Could you be more specific

7 0

4 years ago

What is an ion in chemistry

Inga [223]

Its an atom, or molecule, [in which] the complete amount of electrons isn't equal to the complete amount of protons. (Giving the atom/molecule a positive or negative electrical charge).

If this is incorrect- I'm sorry! ^^;

4 0

3 years ago