Answer:
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Explanation:
Answer:
Explanation:
The atomic number (Z) of copper is 29 and this isotope has an atomic mass (A) of 70.
The general symbol for an isotope E is .
The atomic number is a left subscript, and the atomic mass is a left superscript.
The number of moles in 3.20 x 10² formula units of calcium iodide is 0.053 moles.
<h3>How to calculate number of moles?</h3>
The number of moles in the formula units of a substance is calculated by dividing the formula unit by Avogadro's number.
According to this question, 3.20 x 10² formula units are in calcium iodide. The number of moles is as follows:
no of moles = 3.20 x 10²² ÷ 6.02 × 10²³
no of moles = 0.53 × 10-¹
no of moles = 0.053 moles
Therefore, the number of moles in 3.20 x 10² formula units of calcium iodide is 0.053 moles.
Learn more about number of moles at: brainly.com/question/12513822
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<u>Answer:</u> The correct answer is Option A.
<u>Explanation:</u>
Boyle's law states that pressure is inversely proportional to the volume of the gas at constant temperature.
Mathematically,
(At constant temperature)
Charles' law states that volume is directly proportional to the temperature of the gas at constant pressure.
Mathematically,
(At constant pressure)
Gay-Lussac's law states that pressure is directly proportional to the temperature of the gas at constant volume.
Mathematically,
(At constant volume)
Hence, the correct answer is Option A.