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3 years ago

Which procedure could a student use to examine an intensive property of a rectangular block of wood

Chemistry

2 answers:

Hunter-Best [27]3 years ago

7 0

Answer:

The correct answer is density, because intensive properties can be measured.

Explanation:

Intensive properties can be measured. Their values depend on the type of material and not the amount of matter we have. To measure density, we must first measure the volume of the block of wood with a measuring tape, then we can weigh the block of wood on a calibrated scale, and finally, calculate density as the ratio of mass to volume ( m/V).

Have a nice day!

kirill [66]3 years ago

6 0

An intensive property does not change when you take change when you take away some of the sample the producers that a student could use to examine the intensive property of a rectangular block of wood

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If a gas furnace releases 420 kcal of heat energy, what is the energy in kilojoules? (1 cal = 4.184 J)

Igoryamba

Answer:
The furnace releases 1757280 J

Explanation:
We will do the conversion on two steps:
1- convert the kcal to cal
2- convert the cal to J

Step 1: converting kcal to cal
1 kcal is equivalent to 1000 cal. Therefore:
420 kcal is equivalent to 420*1000 = 420000 cal

Step 2: converting cal to J
We are given that:
1 cal = 4.184 J
Therefore:
420000 cal is equivalent to 420000 * 4.184 = 1757280 J

Hope this helps :)

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4 years ago

Of the following substances, ________ has the highest boiling point. Of the following substances, ________ has the highest boili

kolezko [41]

Answer:

Of the following substances, PCl₃ has the highest boiling point

Explanation:

The given substances and their boiling point from online resources are;

Krypton, Kr, boiling point = -153.4°C

Chlorine gas, Cl₂, boiling point = -34.6°C

Borane, BH₃, (transient compound), boiling point of the dimer it forms B₂H₆ = -164.85°C

Methane, CH₄, boiling point = -161.6°C

Phosphorus trichloride, PCl₃, boiling point = 76.1°C

Therefore, given that PCl₃ is a volatile liquid at room temperature, while the other substances are gases and that PCl₃ has the highest boiling point of all the substances of 76.1°C, the substance with the highest boiling point is PCl₃.

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3 years ago

Compare the molar concentration of the crystal violet solution to that of the sodium hydroxide solution. approximately how much

romanna [79]

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3 years ago

A 25. 0-ml sample of 0. 150 m hydrocyanic acid is titrated with a 0. 150 m naoh solution. What is the ph beforeany base is added

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Answer:

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Explanation:

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3 years ago

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