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3 years ago

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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1. john needs to create a buffered solution at a ph of 3.5 for his biomedical laboratory

Lunna [17]

Answer:

Use a ratio of 0.44 mol lactate to 1 mol of lactic acid

Explanation:

John could prepare a lactate buffer.

He can use the Henderson-Hasselbalch equation to find the acid/base ratio for the buffer.

$\text{pH} = \text{pK}_{\text{a}} + \log\dfrac{\text{[A$^{-}$]}}{\text{[HA]}}\\\\3.5 = 3.86 + \log\dfrac{\text{[A$^{-}$]}}{\text{[HA]}}\\\\\log\dfrac{\text{[A$^{-}$]}}{\text{[HA]}} = 3.5 - 3.86 = -0.36\\\\\dfrac{\text{[A$^{-}$]}}{\text{[HA]}} = 10^{-0.36} = \mathbf{0.44}$

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

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