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Julli [10]
2 years ago
14

1. What kind of diagram shows how energy flows from one organism to another?

Chemistry
1 answer:
shusha [124]2 years ago
5 0
It would be D.the food chain
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The enthalpy of fusion of solid n-butane is 4.66 kJ/mol. Calculate the energy required to melt 58.3 g of solid n-butane.
adelina 88 [10]

Answer : The energy required to melt 58.3 g of solid n-butane is, 4.66 kJ

Explanation :

First we have to calculate the moles of n-butane.

\text{Moles of n-butane}=\frac{\text{Mass of n-butane}}{\text{Molar mass of n-butane}}

Given:

Molar mass of n-butane = 58.12 g/mole

Mass of n-butane = 58.3 g

Now put all the given values in the above expression, we get:

\text{Moles of n-butane}=\frac{58.3g}{58.12g/mol}=1.00mol

Now we have to calculate the energy required.

Q=\frac{\Delta H}{n}

where,

Q = energy required

\Delta H = enthalpy of fusion of solid n-butane = 4.66 kJ/mol

n = moles = 1.00 mol

Now put all the given values in the above expression, we get:

Q=\frac{4.66kJ/mol}{1.00mol}=4.66kJ

Thus, the energy required to melt 58.3 g of solid n-butane is, 4.66 kJ

7 0
2 years ago
I will do anything if someone answers this like pleaseeee ...?
Musya8 [376]
I’d say C. It more inconsistent than D.
D & C are quite close.

Answer: C
7 0
3 years ago
What is the pH of a neutral solution at 25°C?<br> 7<br> 1
Kaylis [27]

Answer:

I pretty sure it's the pH level 7

8 0
3 years ago
RES
lubasha [3.4K]

Answer: A, C, E

Explanation:

Got it right

6 0
3 years ago
Read 2 more answers
Name of the unit and type of measurement indicated for 4.8 m
s2008m [1.1K]

<u>Answer:</u> The given quantity is a type of length and is measured i the units of meters.

<u>Explanation:</u>

For the given quantity which is 4.8 meters, the unit is meters ans it the unit used to measure the length of an object.

For example: The height of the building is 150 meters. This statement means that the length of the building from the ground is 150 and it is measured in the units of meters.

Hence, the given quantity is a type of length and is measured i the units of meters.

7 0
3 years ago
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