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hoa [83]
3 years ago
7

What are two possible labels (units) that could be used when calculating average speed?

Chemistry
2 answers:
Artemon [7]3 years ago
5 0

average speed:

\boxed{\bold{v_{avg}=\dfrac{total~distance}{total~time}}}

distance = meter (m)

time = second (s)

so two possible units = m and s

laila [671]3 years ago
4 0

answer: The unit of measurement in the International System (S.I.) of the average speed is the meter per second

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Explanation:

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3 years ago
Given that Kp [NOTE: Kp!!!!] = 1.39 at 400 ºC for the reaction, P4(g) <=> 2 P2(g), which answer best describes the reactio
Igoryamba

Answer:

The reaction will proceed to the left to attain equilibrium.

Explanation:

The question is missing but I guess it must be about <em>how the reaction will proceed to attain equilibrium.</em>

First, we have to calculate the partial pressures using the ideal gas equation.

pP_{4}=\frac{2.50mol\times (0.08206atm.L/mol.K)\times 673K}{25.0L} =5.52atm

pP_{2}=\frac{1.50mol\times (0.08206atm.L/mol.K)\times 673K}{25.0L}=3.31atm

Now, we have to calculate the reaction quotient (Qp).

Qp=\frac{pP_{2}^{2}}{pP_{4}} =\frac{3.31^{2} }{5.52} =1.98

Since Qp > Kp, the reaction will proceed to the left to attain equilibrium.

3 0
3 years ago
How many moles of gas are in a room with a volume of 85.0 L? A light bulb in the same room at the same temperature and pressure
Oduvanchick [21]

Answer: A light bulb in the same room at the same temperature.

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7 0
3 years ago
A pure gold metal bar displaces 0.82 L of water. What is the mass in kilograms? (the density of gold is 19.3 g/cm^3)
Ket [755]

Answer:

Mass of gold bar is 15.8 kg

Explanation:

The gold metal bar displaces volume of water equal to volume of metal bar.

So, volume of gold metal bar = 0.82 L

1cm^{3}=0.001L

We know that density is the ratio of mass to volume.

So mass of gold bar = (density of gold)\times(volume of gold bar) = (19.3\times0.82\times \frac{1}{0.001})g =15826 g

Now, 1 g = 0.001 kg

So mass of gold bar  = (15826\times 0.001) kg = 15.8 kg

6 0
4 years ago
Oxygen has an atomic mass of 16 and an atomic number of 8. how many neutrons are present
Alex
<span>An atoms atomic mass is the sum of it's proton and neutrons found in the nucleus. An atom's atomic number is the number of protons an atom has. By subtracting an element's atomic number from the atomic mass you can calculate the number of neutrons. For oxygen it would be sixteen minus eight, so oxygen has eight neutrons.</span>
7 0
3 years ago
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