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____ [38]
3 years ago
8

If the following elements were to combine with each other, choose which demonstrate the Law of Multiple Proportion. Select all t

hat apply. Z:X = 7:1 A:Z = 2.5:1 A:Z = 2.2:1 Y:X = 11:1
Chemistry
1 answer:
Marysya12 [62]3 years ago
6 0
Answer is:<span> Z:X = 7:1 and </span><span>Y:X = 11:1.

</span>Law of multiple proportions or Dalton's Law said that <span>the ratios of the masses of the second element which combine with a fixed mass of the first element will be ratios of small whole numbers. 
In this example ratios are whole numbers, </span><span>A:Z = 2.5 : 1 and A:Z = 2.2 : 1 are not whole number ratios.</span><span>

</span><span>

</span>
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A container of carbon dioxide has a volume of 240 mL at a temperature of 22°C. If the pressure remains constant, what is the vol
astraxan [27]

Answer:

Volume of the CO_{2} gas at 44°C is <u>258 ml.</u>

Explanation

here,

using Charles' law ,

\frac{V}{T} =\frac{v}{t}

where , V= initial volume          v= final volume

             T=initial temperature    t = final temperature

Given - pressure is constant ,

so , putting the values -

V= 240ml

T= 22 + 273K = 295K                      (since converting celsius into kelvin that

                                                         is +273K )

v =?

t = 44+ 273K = 317K

Now , putting the given values in charles' law ,

\frac{240ml}{295K} =\frac{v}{317K}

240ml x317K = v x 295K     (through cross multiplication )

v =\frac{240ml\times317K}{295K}

= 258ml .

thus ,<u> the volume of carbon dioxide in a container at 44°C IS 258ml .</u>

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How should pure water be classified with respect to its electrical conductivity properties?
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