The combined gas law combines the three gas laws: Boyle's Law, Charles' Law, and Gay-Lussac's Law. It states that the ratio of the product of pressure and volume and the absolute temperature of a gas is equal to a constant. ... The constant k is a true constant if the number of moles of the gas doesn't change.
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Answer:
Metals are the only substances that use metallic bonds among their atoms.
Explanation:
While many elements are commonly known as metals, including iron, aluminum, gold, silver and nickel, metals include a variety of other elements as well.
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Answer: Over the past century, the main energy sources used for generating electricity have been fossil fuels, hydroelectricity and, since the 1950s, nuclear energy
Explanation:
Answer:
1370moles
Explanation:
Given parameters:
Number of molecules in methane = 8.25 x 10²⁶molecules
Unknown:
Number of moles of methane = ?
Solution:
A mole of any substance contains the Avogadro's number of particles which is 6.02 x 10²³molecules;
6.02 x 10²³ molecules is contained in 1 mole of a substance
8.25 x 10²⁶molecules of methane will contain = 1370moles
The earth revolves around the Sun, which is at the centre of our solar system. The moon revolves around the earth as a natiral satellite.
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