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Zepler [3.9K]
2 years ago
7

Why is melting a physical property of the wax, while flammability is a chemical property of the wax?.

Chemistry
1 answer:
Usimov [2.4K]2 years ago
4 0

Answer:

because melted wax is still wax and flammability is just  a chemical property

Explanation:

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An antifreeze solution is made by mixing ethylene glycol (ρ = 1116 kg/m3) with water. suppose the specific gravity of such a sol
Harman [31]
Answer is: <span>the volume percentage of ethylene glycol in the solution is 43.1%.
V(solution) = 1 m</span>³.
d(solution) = 1050 kg/m³.
m(solution) = 1050 kg.
d(ethylene glycol) = 1116 kg/m³.
d(water) = 1000 kg/m³.
m(solution) = d(ethylene glycol) · V(ethylene glycol) + d(water) · V(water). 
V(ethylene glycol) = 1m³ - V(water).
1050 kg = 1116 kg/m³ · (1m³ - V(water)) + 1000 kg/m³ · V(water).
1050 kg = 1116 kg - 1116·V(water) + 1000·V(water).
116 kg/m³ ·V(water) = 66kg.
V(water) = 0.569 m³.
V(ethylene glycol) = 1 m³ - 0.569 m³ = 0.431 m³.
percentage = 0.431 m³ ÷ 1 m³ · 100% = 43.1%.

3 0
3 years ago
How much Cu-64 (half-life about 12 hours) would remain from a 2 mg sample after 12 hours?​
Bogdan [553]

Answer:

i beleive it is  A if not here a cookie online cookie also dont forget to wear your mask kiddos

Explanation:

7 0
3 years ago
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Why are conductors better than insulators to carry electric current
marysya [2.9K]

Conductors are better than insulators to carry electric current because they give the electricity the ability to flow freely throughout circuits. This helps the insulator to do its job of containing the electric charge. Examples of this would be a tv plug - the rubber surrounding the TV plug helps to keep the conductors (wires) in place, thus helping to facilitate an electric charge.

5 0
3 years ago
Properties of iron, barium, and phosphorus. Explain why nails are made of iron but they are never made of barium or phosphorus.
bearhunter [10]

Nails are made up of iron not of phosphorus and barium.  

As both phosphorous and barium are relatively weaker than iron ,phosphorus breaks easily and barium is also fairly weak. Iron nails are already also not that strong, but their weight and strength are sufficient.  

So the nails are made up of iron.

3 0
3 years ago
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katovenus [111]

Answer:

20.82

Explanation:

7 0
3 years ago
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