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2 years ago

8

Do you think the younger scientist had enough evidence for his prediction?

2 answers:

grin007 [14]2 years ago

5 0

You have no context to the problem

Sveta_85 [38]2 years ago

4 0

Answer:

yes

Explanation:

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An unknown metal has a mass of 86.8 g. When 5040 J of heat are added to the sample, the sample temperature changes by 64.7 ∘ C .

grandymaker [24]

Answer: The specific heat of the unknown metal is $0.897J/g^0C$

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

$Q=m\times c\times \Delta T$

Q = Heat absorbed= $5040$ Joules

m= mass of substance = 86.8 g

c = specific heat capacity = ?

Initial temperature of the water = $T_i$

Final temperature of the water = $T_f$

Change in temperature , $\Delta T=T_f-T_i=(64.7)^0C$

Putting in the values, we get:

$5040=86.8\times c\times 64.7^0C$

$c=0.897J/g^0C$

The specific heat of the unknown metal is $0.897J/g^0C$

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3 years ago

Aluminum chloride is added to cesium does a single replacement reaction occur, and if so what is the correct chemical equation f

krek1111 [17]

The answer is C

I hope that helped

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