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lisov135 [29]
3 years ago
11

Which of the following laboratory procedures best illustrates the law of conservation of mass?

Chemistry
2 answers:
11111nata11111 [884]3 years ago
5 0

it would be heating of 32g of s and 56g of Fe to produce 88g of FeS and unused reactants

Thepotemich [5.8K]3 years ago
4 0

Answer: Option (c) is the correct answer.

Explanation:

According to law of conservation of mass, in an isolated system mass cannot be created or destroyed as it can be transformed from one form to another.

For example, heating 32 g of S and 56 g of Fe to produce 88 g of FeS and unused reactants.

So, total mass of reactants is 32 g + 56 g = 88 g. And, total mass of product formed is also 88 g.

Therefore, mass is neither destroyed nor created as it simply transformed from one from form to another.

Thus, we can conclude that heating 32 g of S and 56 g of Fe to produce 88 g of FeS and unused reactants, best illustrates the law of conservation of mass.

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Answer:

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5 0
3 years ago
A piece of unknown metal with mass 68.6 g is heated to an initial temperature of 100 °C and dropped into 42 g of water (with an
kogti [31]

The piece of unknown metal is in thermal equilibrium with water such that Q of metal is equal to Q of the water. We write this equality as follows:

-Qm = Qw

Mass of metal (Cm)(ΔT) = Mass of water (Cw) (ΔT)

where C is the specific heat capacities of the materials.

We calculate as follows:

-(Mass of metal (Cm)(ΔT)) = Mass of water (Cw) (ΔT)

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3 years ago
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11111nata11111 [884]

Answer:

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Explanation:

Major periodic trends include atomic radius, ionization energy, electron affinity, electronegativity, valency and metallic character. These trends exist because of the similar electronic configuration of the elements within their respective groups or periods and because of the periodic nature of the elements.

8 0
1 year ago
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Answer:

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Explanation:

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4 0
3 years ago
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Finger [1]
I think the correct answer from the choices listed above is option C. The statement that best explains why a crystal is incompressible would be that there is little, if any, space left between its adjacent molecules. Hope this answers the question. Have a nice day.
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3 years ago
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