Answer:
Wide melting point range - impure sample with multiple compounds
Experimental melting point is close to literature value - pure sample of a single compound
Experimental melting point is below literature value - impure sample with multiple compounds
Narrow melting point range - pure sample of a single compound
Explanation:
The melting point of substances are easily obtainable from literature such as the CRC Handbook of Physics and Chemistry.
A single pure substance is always observed to melt within a narrow temperature range. This melting temperature is always very close to the melting point recorded in literature for the pure compound.
However, an impure sample with multiple compounds will melt over a wide temperature range. We also have to recall that impurities lower the melting point of a pure substance. Hence, the experimental melting point of an impure sample with multiple compounds is always below the literature value.
Answer:
1 is the same 3 is pure substance 4 is different
Explanation:
not sure about 2
Answer:
of silver would be required.
Explanation:
Dimensions of silver mas :
Length = l = 120.0 ft
breadth = b = 60.0 ft
Height = h = 0.33 ft
Volume of silver mass ,V= l × b × h
Density of silver,d = 
of silver would be required.
<u>Answer:</u>
<em>The returns of the company as it is given is already large that is 91% and to get an outcome even better is what it is getting now. There should be certain improvements that needs to be applied with the </em><em>help of stoichiometric data gathered.
</em>
<u>Explanation:</u>
Since the cost of materials cannot be affected and have to be bought under similar rate of cost of working or process can be decreased. By using machines calculation and mechanical devices this come would be accurate and the laws would be minimised. Hence the companies outcome would increase.
