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bekas [8.4K]
2 years ago
15

Non metal are usually poor conductor of hart and electricity . The are non -lustourous,non-sonours,non-malleable and are coloure

d 1. Name a non-malleable 2. Name a non-matal which exist as a liquid at room temperature 3. The allotropic form a non-matal which is good conductor of of electricity . Name the allotrope 4. Name a non -metal other than carbon which shows allotropy 5 . Name a non -metal which is know to form the largest number of compounds 6. Name a non-metal which is required for combustion

Chemistry
1 answer:
vekshin12 years ago
7 0
Check the solution in the attachment.

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Between reaction of magnesium powder and lead oxide which is oxidized in the reaction and which is oxidizing agent
GuDViN [60]

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3 years ago
How many 20.0-g ice cubes are required to absorb 47.0 kJ from a glass of water upon melting?
Sati [7]

Hello!


The number of 20-g ice cubes required to absorb 47 kJ from a glass of water upon melting is 7 icecubes


Why?


We are going to clear from the equation of the released heat, the mass of ice (m). The specific latent heat of fusion of ice is 336 kJ/kg:


Q=m*L\\ \\ m=\frac{Q}{L}=\frac{47 kJ}{336 kJ/kg}=0,1399 kg=139,88 g\\   \\ 139,88g*\frac{1 icecube}{20g}=6,99=7icecubes


So, 7 ice cubes are required to absorb that amount of heat from the glass of water.


Have a nice day!

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3 years ago
How is matter and energy conserved when liquid is frozen
Brut [27]

Answer:

The big energy change when water freezes is in the potential energy of interactions between the water molecules.

Explanation:

I am not to sure if this is correct, but I hope it helps in some way.

3 0
3 years ago
Explain how Earth is heated through radiation.
sergiy2304 [10]

With this temperature the Earth Radiation will be centered on a Wavelength!

8 0
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The atomic mass of an imaginary element X is 30.7377 amu. Element X has three isotopes. One isotope has an isotopic mass of 30.5
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Answer:

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Explanation:

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8 0
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