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Dovator [93]
3 years ago
8

please explain why boiling point melting are not considered chemical properties but are considered physical properties of matter

​
Chemistry
1 answer:
UkoKoshka [18]3 years ago
6 0

Answer:

All matter has physical and chemical properties. Physical properties are characteristics that scientists can measure without changing the composition of the sample under study, such as mass, color, and volume (the amount of space occupied by a sample). Chemical properties describe the characteristic ability of a substance to react to form new substances; they include its flammability and susceptibility to corrosion. All samples of a pure substance have the same chemical and physical properties. For example, pure copper is always a reddish-brown solid (a physical property) and always dissolves in dilute nitric acid to produce a blue solution and a brown gas (a chemical property).

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Estimate the percent ionic character of the co bond. (note that the electronegativity of c is 2.5 and that of o is 3.5.)
deff fn [24]

From the calcuation, the percent ionic character of the bond is  70%

<h3>What is percent ionic character?</h3>

The term percent ionic character has to do with the degree of ionic bonding that is contained in a compound. It can be estimated from the electronegativity of each element.

We can use the formula; 100(1 - e^(-ΔEN² / 4))

EN = χB − χA * 100/1

EN = 3.5 - 1.5 = 1

100(1 - e^(-1)^2/4)

= 70%

Learn more about percent ionic character:brainly.com/question/7034446

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5 0
2 years ago
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Alecsey [184]

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3 years ago
Does anyone now what r.a.c.e mean in science space race what each word stands for
gregori [183]

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Explanation:

3 0
3 years ago
The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride produced 22.4 of sodium upon deco
denpristay [2]
 1.21:1 = 22.4 : x    where x is the amount of fluorine produced.

So answer is 22.4 / 1.21 =  18.51
5 0
3 years ago
What is the pH of a solution that has a [H+] of 1.5 × 10−5 M?
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pH = -log[H⁺] = -log(1.5 × 10⁻⁵) = 4.82

8 0
3 years ago
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