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3 years ago

How can you tell whether one glass of water has more thermal energy than another, identical glass of water

2 answers:

8 0

You can know which one has more thermal energy by testing the temperature, if it is warmer the more energy it has because the particles are going faster than they would if it was cold. because, when its cold the particles slow down until they are so cold they are frozen. (ice).

iren2701 [21]3 years ago

5 0

According to my school book thermal energy is the total kinetic energy of the particles that make up a substance thermal energy is measured in joules know that this is different from the temperature for it is the average kinetic energy while the thermal energy is the total kinetic energy.not done answering this

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Calculate the frequency of radiation with a wavelength of 1.08 x 10^-6 m. simple explanation please

pishuonlain [190]

C = vf
c stands for the speed of waves (which is a constant that is 3 x 10^8)
v stands for the wavelength (which is given)
f stands for frequency (what we are solving for)
3 x 10^8 = (1.08 x 10^-6)f
Divide both sides by the given wavelength
f = 2.78 * 10^14 seconds

8 0

3 years ago

It is a vocal music of Mindoro

Anna [14]

Answer:

instrumental music is used in festivals, rituals, etc.

Explanation:

8 0

3 years ago

18. How many moles of atoms are there in each of

Lelechka [254]

a) 1 mole of Ne

b) i/2 mole of Mg

c) 1570 moles of Pb.

d) 2.18125*10^-13 moles of oxygen.

Explanation:

The number of moles calculated by Avogadro's number in 6.23*10^23 of Neon.

6.23*10^23= 1/ 6.23*10^23

= 1 mole

The number of moles calculated by Avogadro's number in 3.01*10^23 of Mg

3.2*10^23=1/6.23*10^23

= 1/2 moles of Pb.

Number of moles in 3.25*10^5 gm of lead.

atomic weight of Pb=

n=weight/atomic weight

= 3.25*10^5/ 207

= 1570 moles of Pb.

Number of moles 4.50 x 10-12 g O

number of moles= 4.50*10^-12/16

= 2.18125*10^-13 moles of oxygen.

3 0

3 years ago

2 grams of hydrogen diffuses from containers in 10 minutes. How many grams of oxygen would diffuse through same container in sam

Leya [2.2K]

Answer:20

Explanation:make sure you thank me

4 0

2 years ago

2) Calculate the percent composition of each element in Mgso,

iogann1982 [59]

Answer:

$\% Mg=20.2\%\\\\\% S=26.6\%\\\\\% O=53.2\%$

$\% Ag=93.1\%\\\\\% O=6.9\%$

Explanation:

Hello!

2) In this case, since magnesium sulfate is MgSO₄, we can see how magnesium weights 24.305 g/mol, sulfur 32.06 g/mol and oxygen 64.00 g/mol as there is one atom of magnesium as well as sulfur but four oxygen atoms for a total of g/mol; thus the percent compositions are:

$\% Mg=\frac{24.305}{120.36 } *100\%=20.2\%\\\\\% S=\frac{32.06}{120.36 } *100\%=26.6\%\\\\\% O=\frac{64.00}{120.36 } *100\%=53.2\%$

3) In this case, although the element seems to contain Ag and O, we infer its molecular formula is Ag₂O; thus, since we have two silver atoms weighing 215.74 g/mol and one oxygen atom weighing 16.00 g/mol for a total of 231.74 g/mol, we obtain the following percent compositions:

$\% Ag=\frac{215.74}{231.74} *100\%=93.1\%\\\\\% O=\frac{16.00}{231.74} *100\%=6.9\%$

Best regards!

7 0

3 years ago