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kaheart [24]
3 years ago
12

Check all the examples below that represent a physical property of matter​

Chemistry
2 answers:
andre [41]3 years ago
7 0

Answer:

A physical property is a characteristic of matter that is not associated with a change in its chemical composition.

The change of one type of mater into another type is a chemical property flammability, acidity, toxicity, reactivity, and heat of combustion are some examples of chemical properties.

(I know this doesn't fully match what you're asking, but this might help!)

Please rate, heart, and give brainliest :)

zzz [600]3 years ago
6 0

Answer:

A physical property is a characteristic of matter that is not associated with a change in its chemical composition.

The change of one type of mater into another type is a chemical property flammability, acidity, toxicity, reactivity, and heat of combustion are some examples of chemical properties.

Explanation:

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What is the length of a one-dimensional box for an electron (9.109 x 10-31 kg) with an n=1 energy of 479 kJ/mol? Give the answer
OverLord2011 [107]

Answer : The length of a one-dimensional box for an electron is 2.819\times 10^{31}\AA

Explanation :

The energy level of quantum particle in a one-dimensional box is given as:

E_n=\frac{n^2h^2}{8mL^2}

where,

E_n = 479 kJ/mol = 479000 J/mol

n = energy level = 1

h = Planck's constant = 6.626\times 10^{-34}Js

m = mass of electron = 9.109\times 10^{-31}kg

L = length of a one-dimensional box = ?

Now put all the given values in the above formula, we get:

479000J/mol=\frac{(1)^2\times (6.626\times 10^{-34}Js)^2}{8\times (9.109\times 10^{-31}kg)\times L^2}

L=2.819\times 10^{21}m

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