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3 years ago

In which of the following states of matter are the particles moving the fastest? (4 points)

Chemistry

1 answer:

xenn [34]3 years ago

7 0

Hello.

The answer is Gas.
In gases the partcails have more space and can move faster.

Have a nice day

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Convert 1.25 atm to torr.

Alecsey [184]

Answer:

1.25 standard atmosphere = 950 Torr

Explanation:

Formula

multiply the pressure value by 760!!

7 0

2 years ago

PLEASE HELP !!!

garri49 [273]

According to the Law of Definite Proportions from Dalton's Atomic Theory, each compound is composed of a fixed ratio of each of its individual elements. So, the number of individual elements per 1 particle of that compound is represented by the subscripts. The answers are as follows:

Table sugar: 12 atoms of carbon, 22 atoms of hydrogen; 11 atoms of oxygen; 45 total atoms
Marble: 1 atom of calcium, 1 atom of carbon; 3 atoms of oxygen; 5 total atoms
Natural gas: 1 atom of carbon, 4 atoms of hydrogen; 5 total atoms
Rubbing alcohol: 3 atoms of carbon, 8 atoms of hydrogen; 1 atom of oxygen; 12 total atoms
Table sugar: 1 atom of silicon; 2 atoms of oxygen; 3 total atoms

7 0

3 years ago

Calculate the change in entropy of 3 moles of liquid water if you heat it from 5˚C to 95˚C. The molar heat capacity of liquid wa

IceJOKER [234]

Answer: The entropy change of the liquid water is 63.4 J/K

Explanation:

To calculate the entropy change for same phase at different temperature, we use the equation:

$\Delta S=n\times C_{p}\times \ln (\frac{T_2}{T_1})$

where,

$\Delta S$ = Entropy change

$C_{p}$ = molar heat capacity of liquid water = 75.38 J/mol.K

n = number of moles of liquid water = 3 moles

$T_2$ = final temperature = $95^oC=[95+273]K=368K$

$T_1$ = initial temperature = $5^oC=[5+273]K=278K$

Putting values in above equation, we get:

$\Delta S=3mol\times 75.38J/mol.K\times \ln (\frac{368}{278})\\\\\Delta S=63.4J/K$

Hence, the entropy change of the liquid water is 63.4 J/K

4 0

2 years ago

Could I have help on 4 and 5? Just the letter please I don't need an explaintion

PIT_PIT [208]

5. is b
but im not sure about 4
hope this helps

6 0

3 years ago

Below are the reduction half reactions for chemolithoautotrophic nitrification, where ammonia is a source of electrons and energ

SSSSS [86.1K]

Answer: The molecules of oxygen gas that will be reduced to water are 42 molecules

Explanation:

We are given:

$E^o_{(NO_2^-/NH_4)}=-0.41V\\E^o_{(O_2/H_2O)}=0.82V$

The substance having highest positive $E^o$ potential will always get reduced and will undergo reduction reaction. Here, oxygen will undergo reduction reaction will get reduced.