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Liula [17]
3 years ago
5

1. For each of your three trials state the following:

Chemistry
2 answers:
11111nata11111 [884]3 years ago
8 0

did u ever get the answer ? I’m also on k12 stuck on this lol

charle [14.2K]3 years ago
5 0

Answer:

Trial 1: Heat needed: 22.0 Enthalpy of Fusion: 469 J/g Percent Error: 29% Trial

2: Heat needed: 18.0 Enthalpy of Fusion: 399 J/g Percent Error: 19%

Trial 3: Heat needed: 20.0 Enthalpy of fusion: 376 J/g Percent Error: 13%

Explanation:

your welcome

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Viktor [21]

Answer:

C). 373 Kelvin, 100 degrees Celsius, 212 degrees Fahrenheit

Explanation:

Kelvin and Celsius are related using the equation K = C + 273.

Celsius and Fahrenheit are related using the equation F = (9/5) * C + 32.

This means that Kelvin and Celsius have to differ by 273, in which only B and C fit that description.

Then you can look at the Celsius and Fahrenheit readings from B and C and apply the equation F = (9/5) * C + 32. For B, you take 0 degrees Celsius and substitute it in for C to get F = (9/5) * 0 + 32, in which you get 32 degrees Fahrenheit and <em>not </em>the 212 degrees in answer B. For C, you do the same: F = (9/5) * 100 degrees Celsius + 32 = 212 degrees Fahrenheit, which does agree with the answer. Therefore, it must only be C.

3 0
3 years ago
A piston starts out with a volume of 3.000 L at 250.0 K and 800.0 torr. It is heated to 500.0 K and has a new volume of 4.000 L.
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8 0
3 years ago
Which of these is correct regarding Thomson's cathode ray observations
uysha [10]

Answer:

c

Explanation:

8 0
3 years ago
What is the importance of the central vacuole in plant cells
tamaranim1 [39]

Central Vacuole in plant cells:

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Hope this helped and plz mark as brainliest!

7 0
3 years ago
Read 2 more answers
What is the formula of given elements: a). Tungsten b). Lead c). Calcium d). Ziriconium​
monitta
_____________________________

Answer:

Elements -------> Formulae

a). Tungsten ----> W

b). Lead -----------> Pb

c). Calcium ------> Ca

d). Ziriconium --> Zr

_____________________________
4 0
4 years ago
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