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kifflom [539]
3 years ago
9

Three sections of the periodic table are labeled A, B, and C in the image. Which of the following statements is MOST LIKELY true

for an element present in section C?
(Section C is everything to the right of "the stairs")



A. It is dull and brittle as a solid

B. It is a high density

C. It is malleable and ductile

D. It is a good conductor of electricity
Chemistry
2 answers:
Marizza181 [45]3 years ago
8 0
I think the answer is A
olga2289 [7]3 years ago
6 0

Answer:

Your correct answer is A. It is dull and brittle as a solid

Explanation:

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When 45 g of an alloy, at 25oC, are dropped into 100.0 g of water, the alloy absorbs 956 J of heat. If the final temperature of
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Answer:

The answer to the question is

The specific heat capacity of the alloy = 1.77 J/(g·°C)

Explanation:

To solve this, we list out the given variables thus

Mass of alloy = 45 g

Initial temperature of the alloy = 25 °C

Final temperature of the alloy = 37 °C

Heat absorbed by the alloy = 956 J

Thus we have

ΔH = m·c·(T₂ - T₁) where  ΔH = heat absorbed by the alloy = 956 J, c = specific heat capacity of the alloy and T₁ = Initial temperature of the alloy = 25 °C , T₂ = Final temperature of the alloy = 37 °C  and m = mass of the alloy = 45 g

∴ 956 J = 45 × C × (37 - 25) = 540 g·°C×c  or

c = 956 J/(540 g·°C) = 1.77 J/(g·°C)

The specific heat capacity of the alloy is 1.77 J/(g·°C)

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