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Misha Larkins [42]
3 years ago
12

What does 3 dots inside a silver ring mean?

Chemistry
2 answers:
Alex73 [517]3 years ago
8 0
It's reported inside the riddles or decorations
frez [133]3 years ago
3 0
There is really no way of knowing unless the particular 'maker' of the ring is reknown. I would suggest to take it to a jeweler to have it tested to see if it is real gold or gold platitum mixed etc. Most reliable jewelry stores will test it free, especially if you tell them, 'If this is real, I'm thinking about hiring you to polish it.; This is what I did the last time I found a gold/diamond ring, and after finding out it was the real deal, I paid them $25.00 to polish it, and it looks brand new.
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Given 6193 mL of a gas at 62.3 °C. What is its volume at 38.1 °C?
Luden [163]

Answer:

5746.0 mL.

Explanation:

We can use the general law of ideal gas:<em> PV = nRT.</em>

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

If n and P are constant, and have two different values of V and T:

<em>V₁T₂ = V₂T₁</em>

<em></em>

V₁ = 6193.0 mL, T₁ = 62.3°C + 273 = 335.3 K.

V₂ = ??? mL, T₂ = 38.1°C + 273 = 311.1 K.

<em>∴ V₂ = V₁T₂/T₁ </em>= (6193.0 mL)(311.1 K)/(335.3 K) = <em>5746.0 mL.</em>

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2 years ago
Where does the energy of a hurricane come from? (1 point)
bekas [8.4K]
The answer is strong winds
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2 years ago
How does the level of organization relate to cells? To organ systems?
kotegsom [21]
Cells make up tissues, Tissues make up Organs, and Organs make up Organ Systems.
4 0
3 years ago
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Question 3
Assoli18 [71]

Answer:

c

Explanation:

8 0
2 years ago
A 0.250 g sample of hydrocarbon (containing only carbon and hydrogen) undergoes complete combustion to produce 0.845 g of CO2 an
melomori [17]

Answer:

CH

Explanation:

We have to obtain the mass of carbon and hydrogen in CO2 and H2O respectively.

For carbon in CO2;

0.845 * 12/44 = 0.23 g

For hydrogen in H20;

0.173 * 2/18 = 0.019 g

We convert the masses to moles of carbon and hydrogen

For carbon - 0.23/ 12 = 0.019 moles

For hydrogen - 0.019/1 = 0.019 moles

Dividing by 0.019 moles for carbon and hydrogen we have the emperical formula of the compound as CH

5 0
3 years ago
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