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NARA [144]
2 years ago
5

A 283 g silver figure of a polar bear is dropped into the 217 g aluminum cup of a well insulated calorimeter Containing 263 g of

liquid water at 23.7°C period the Bears initial temperature is 96.3°C period what is the final temperature of the water, cup, and beer when they reach thermal equilibrium Librium? The specific heat of silver, aluminum, and liquid water are, respect of Lee, 234J/(KJ times K), 910 J/(KJ times K), and 4190J/(kg*K)
Chemistry
1 answer:
notka56 [123]2 years ago
3 0

Answer:

I'm Not Sure Sorry

Explanation:

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From what we know we can confirm that currently, the primary source of sulfur dioxide of emissions into the atmosphere is coal and other fossil fuel burning in industry.

<h3 /><h3>What are the consequences of Sulfur dioxide in the atmosphere?</h3>

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2 years ago
Which of the following would be the best object for stirring hot liquids? (1 point)
MakcuM [25]
A Wooden Spoon is your answer because metal attracts heat more, so it would get hotter.

The wooden spoon would not, so you would use that.

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6 0
3 years ago
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Which family contains elements with a full octet of valence electrons?
iren [92.7K]
D. the noble gasses !!!!
5 0
3 years ago
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Calculate the average atomic mas of an unknown element that has two naturally-occurring isotopes.
professor190 [17]
The average atomic mass if the element above is calculated by the sum of the product of the isotope abundance and its atomic mass unit. It is expressed as:

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Hope this helps.
8 0
3 years ago
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A student obtains a mixture of the chlorides of two unknown metals, X and Z. The percent by mass of X and the percent by mass of
Aleksandr-060686 [28]

<u>Answer:</u> The additional information that is helpful in calculating the mole percent of XCl(s) and ZCl(s) is the molar masses of Z and X

<u>Explanation:</u>

To calculate the mole percent of a substance, we use the equation:

\text{Mole percent of a substance}=\frac{\text{Moles of a substance}}{\text{Total moles}}\times 100

Mass percent means that the mass of a substance is present in 100 grams of mixture

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

We require the molar masses of Z and X to calculate the mole percent of Z and X respectively

Hence, the additional information that is helpful in calculating the mole percent of XCl(s) and ZCl(s) is the molar masses of Z and X

8 0
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