So first you work out the ratio. The formula tells us that for every one 'amount' of Ca and Cthere will be 3x the amount of oxygen. So, the ratio is 1:1:3, (=5) therefore 70g divided by 5 = 14.
If 70g of CaCO3 is heated there will be (1x14) 14g Ca, (1x14) 14g C and (3x14) 42g of O.
Weight of CaO= 42+14, 56g
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Answer:
14.None would shine if bulb 1 broke
Explanation:
Bulb one connects all the other bulbs to the switch. If bulb 2 broke instead only 1 and 3 will shine because bulb 2 is not connected to bulb 3. all the bulbs should light when the switch is on.
I dont think I actually got this right pls dont take my answer for fact.
4157 J work is done by the gas , If 2 moles of helium undergo a temperature increase of 100 K at constant pressure.
<h3>What are Noble Gases ?</h3>
The noble gases are helium, argon, krypton, xenon, and radon, in order of their mass.
They are called noble gases because they are so majestic that they do not react with anything in general.
The work done can be calculated by the formula
Q=n Cp ΔT
Cp= ( 1+ f/2)R
R= 8.3144598 J. mol-1.
Cp = (1+3/2) * 8.314
Cp = 5*8.314/2
Q= 2 * 5 *8.314 *100/2
Q = 4157 J
Therefore 4157 J work is done by the gas , If 2 moles of helium undergo a temperature increase of 100 K at constant pressure.
To know more about Noble Gas
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Answer:
You can smell perfume because it diffuses into the air and makes its way into your nose.
A teabag placed in a cup of hot water will diffuse into the water.
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