How much heat energy is required to melt 25.0 g of Aluminum at its melting point, 658°C? (The Hf of Al is 94.4 joules/gram)

2360J

Explanation:

Given parameters:

Mass of aluminum  = 25g

Melting point  = 658°C

Latent heat of melting  = 94.4j/g

Unknown:

Amount of heat require for melting = ?

Solution:

The amount of heat required for this melting will be the product of the mass of the aluminum and the latent heat of melting;

  H = m L

m is the mass

L is the latent heat of melting

  Insert the parameters and solve;

 H = 25 x 94.4 = 2360J

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.