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Pie
3 years ago
11

Of the following, which can be used to identify an element present in a sample?

Chemistry
1 answer:
Anuta_ua [19.1K]3 years ago
6 0

Answer:

idk but i tryed

Explanation:

The simplest way to use the periodic table to identify an element is by looking for the element’s name or elemental symbol. The periodic table can be used to identify an element by looking for the element’s atomic number. The atomic number of an element is the number of protons found within the atoms of that element.

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Answer:

282.7KPa

Explanation:

Step 1:

Data obtained from the question.

Number of mole of (n) = 1.5 mole

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Step 2:

Determination of the pressure exerted by the gas.

This can be obtained by using the ideal gas equation as follow:

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Step 3:

Conversion of 2.79atm to KPa.

This is illustrated below:

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