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Ira Lisetskai [31]
2 years ago
10

What amount of heat is produced during the combustion of hexane if the temperature of the calorimeter increases by 4.542 k?

Chemistry
1 answer:
Flauer [41]2 years ago
5 0

Answer:

the answer is 85.66

Explanation:

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alisha [4.7K]

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4 0
2 years ago
The percent composition of calcium is ?
DochEvi [55]

Answer: 40.1%

Explanation: The mass of calcium in this compound is equal to 40.1 grams because there's one atom of calcium present and calcium has an atomic mass of 40.1 . The molar mass of the compound is 100.1 grams. Using the handy equation above, we get: Mass percent = 40.1 g Ca⁄100.1 g CaCO3 × 100% = 40.1% Ca.

5 0
3 years ago
Is there a way to dissolve more sugar into a solution that it should hold at that temperature? Explain how this is done and what
Darya [45]

The answer is: supersaturated solution.

A supersaturated solution contains more of the dissolved substance than could be dissolved by the solvent under normal circumstances.

A way to dissolve more sugar into a solution is heating a solution.

The more heat is added to a system, the more soluble a substance (in this example sugar) becomes.

The solution will become supersaturated if this solution is suddenly cooled at a rate faster than the rate of precipitation.

6 0
3 years ago
The graph above shows the progress of a chemical reaction. Based on the graph, which of the following is true?
Helen [10]
I believe the answers b
6 0
3 years ago
Read 2 more answers
Arrange the following in order of increasing atomic radius: Br, Cr, Sc, Ge, <br> Co
GarryVolchara [31]

Answer:

Br-35

Cr-24

Sc- 21

Ge-32

Co-27

Br,Co,Ge,Cr,Sc

Explanation:

The atomic radius (r) of an atom can be defined as one half the distance (d) between two nucli in a diatomic molecule. Atomic radii have been measured for elements. The units for atomic radii are picometers, equal to 10−12 meters.

8 0
3 years ago
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