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ziro4ka [17]
3 years ago
13

35 Before the discovery of oxygen some scientists had a different theory about burning.

Chemistry
2 answers:
almond37 [142]3 years ago
7 0
C phlogiston hope this helps
skad [1K]3 years ago
3 0

Answer:

<h2>B i have to search it like 23 hours to find it but Thank you for sharing your question :)</h2>
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Describe how you would obtain a beaker of pure water from salty water
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You can boil or evaporate the water and the salt will be left behind as a solid. If you want to collect the water, you can use distillation. This works because salt has a much higher boiling point than water. One way to separate salt and water at home is to boil the salt water in a pot with a lid.

Explanation:

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3 years ago
How long would it take for 1.50 mol of water at 100.0 ∘c to be converted completely into steam if heat were added at a constant
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To determine the time it takes to completely vaporize the given amount of water, we first determine the total heat that is being absorbed from the process. To do this, we need information on the latent heat of vaporization of water. This heat is being absorbed by the process of phase change without any change in the temperature of the system. For water, it is equal to 40.8 kJ / mol.

Total heat = 40.8 kJ / mol ( 1.50 mol ) = 61.2 kJ of heat is to be absorbed

Given the constant rate of 19.0 J/s supply of energy to the system, we determine the time as follows:

Time = 61.2 kJ ( 1000 J / 1 kJ ) / 19.0 J/s = 3221.05 s
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I took the mg and converted it to grams. That gave me .325 grams. I took that and multiplied that by 3628 grams. If I did my math correctly, the answer would be 1179.1. Rounded up, that would be 1179 aspirin tablets.   Hope this helps. :)

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STEP 7: LEAD
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answer is 76

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pls mark me brainliest right

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RNA is made of monomers called nucleotides
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