Answer:
Particles of matter possess energy called kinetic energy.
Solid cannot be compressed, but gases are highly compressible.
The Kinetic energy of molecules of gases is very large & solids the least.
On heating a sublimable liquid, the molecules break free & escape from the surface of the solid directly into vapour.
Particles of matter move more rapidly on the application of heat
The symbol %v/v means percent by volume. Assuming there is no volume effects when these substances are mixed, we calculate as follows:
% v/v = (25 mL ethanol / 25 mL + 150 mL ) x 100
%v/v = 14.29 mL ethanol / mL solution
Hope this answers the question.
Let us start with the total area of the lawn. Area= width x length, ie, 21 x 20 = 420 sq. ft. Snow flakes per square foot per minute = 1350 So Snow flakes for 420 sq.feet per minute = 420 x 1350 = 567000. Snow flakes for 1 hour = 567000 x 60 = 34020000 (60 minutes) Weight of 34020000 snow flakes = 34020000 x 1.60 = 54432000mg. To convert it into kilograms, divide this number by 1000000 (1 kilogram = 1000000 milligrams) Thus 54432000/1000000 = 54.432 kilograms or 54 kilograms and 432 grams.
The answer to this would be promptly A.
The amount of grams the student gained is 997.9 grams
<h3>Data obtained from the question</h3>
From the question given above, the following data were obtained:
- Mass (in lb) = 2.2 lb
- Mass (in grams) =?
<h3>How to convert 2.2 lb to grams</h3>
The mass gained in grams can be obtained by simply converting 2.2 lb to grams. This is illustrated below:
1 lb = 453.592 grams
Therefore,
2.2 lb = (2.2 lb × 453.592 grams) / 1 lb
2.2 lb = 997.9 grams
Thus, the number of grams the student gained is 997.9 grams
Learn more about conversion:
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