Answer:
It is the last one.
Explanation:
Water molecules are polar, they have cohesive properties, and water is less dense when it is solid than when it is a liquid, that is why ice floats in liquid water. However, water is a very good solvent, it can dissolve many solids, including sugar, salt, and other hydrophilic substances.
Answer:
It will increase the kinetic energy of gas particles and hence gas will expand.
Explanation:
According to law, there is direct relationship between temperature (thermal energy) of gas and it's volume. When the pressure of gas is held constant and it's temperature increases then the volume of gas also gets increases.
When the temperature ( thermal energy) of gas increases then the kinetic energy of particles of gas also gets increases due to which particles start to collide with the wall of container and with themselves as well which in turn causes gas to expand.
Some of these are products most people wouldn't think originated from trees, which only further exemplifies the value of preserving our trees and forests!
Wine Corks. ...
Natural Aspirin and Acne Medication. ...
Sponges. ...
Chewing Gum. ...
Carnauba Wax. ...
Henna Dye. ...
Rubber.
Hello there,
<span>Al has an oxidation number of 3 and Cl has 1. So, the most likely formula unit of the compound is AlCl3.
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Glad to help.
~hottwizzlers
Given that the reactants are the very consituents (elements) of the final compound, the enthalpy change of this reaction is the same heat of formation, Hf.
That means that the enthalpy chage for the reaction is -296.8 kj/mol