An alloy of sodium and potassium is used as a coolant due to its

Chemistry

2 answers:

Paha777 [63]3 years ago

7 0

Answer:

Explanation:

Because It's dense meaning that it doesn't burn

Shalnov [3]3 years ago

7 0

Explanation:

https://youtu.be/f_kgUUaMZlw

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Why are fuels useful (10 points!!) please answer in detail

Elza [17]

Fuels are usefull because if we didn't have them we wouldn't be able to construct a socialised world and transport.

Starting all the way back from the Stone Age when people made the circle shape, fuels have been used to make energy.
We use wood, to warm ourselfs with fire.
We use fossil fuels to make our veichles work.
Without fuels we would actually die. Food is a fuel and if we didn't have food we would die!
Fossil fuels are bad, not only are they poluting, but causing general climate changes.
We should consider using more solar energy (from the sun's fuel) or wind energy.
For a summary, fuels are important to us as giving us energy and movement to our lives.

6 0

3 years ago

Compare 1 mole of H2, 1 mole of O2, and 1 mole of F2. (a) Which has the largest number of molecules? Explain why. (b) Which has

AURORKA [14]

a) Answer:

Number of molecules in 1 mole

Explanation:

a) Whether we take any of the substance among all three of the given substances they will have the same number of molecules in 1 mole of the substance is considered and the value for this will be $6.023 x 10^23$

b) Answer:

In the given question mass of the substance which is greatest is asked for one mole and we also know that mass of one mole is given by molar mass.

Explanation:

b) It is known that $31.98g/mol$ is the molar mass for oxygen which is greater than that of hydrogen while fluorine has a molar mass of $38.0 g/mol$ which on comparison shows that, it is the highest amongst all three.