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dlinn [17]
4 years ago
14

Explain why sharpening a pencil is a different type of physical change it freezing water to make ice cubes

Chemistry
2 answers:
laila [671]4 years ago
8 0
Because you can't make the pencil go back to normal form
Fed [463]4 years ago
8 0
Its a different type of physical change because when your sharpening a pencil it changes the hight and looks, when that happens you can never make your pencil long again. but when your freezing water to ice you can always change it back into its original position.
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The atomic number of argon is 18. will argon tend to form bonds with other elements? explain your answer.
koban [17]
Argon atoms would not tend to make bonds with other atoms since it is classified as a noble atom which means it has a complete filled subshells. It does not have any electrons that are available for bonding. Noble gases belong to the Group 8A in the periodic table of elements. All of the elements in this group do have a complete or filled electron orbitals which makes them so stable or the s and p outer electron shells are complete with electrons. All of them follows the octet rule. Thus, they do not need any sharing or transfer of electrons from other compounds for them to be more stable.
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podryga [215]

<u>Answer:</u> The concentration of Al^{3+} ions is 0.10 M and that of Br^- ions is 0.30 M

<u>Explanation:</u>

We are given:

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The chemical equation for the ionization of aluminium bromide follows:

AlBr_3\rightarrow Al^{3+}+3Br^-

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This one is frictionless, otherwise it would slip into less than one if it had friction.

Answer B


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