Answer: Particles in all states of matter are in constant motion and this is very rapid at room temperature. A rise in temperature increases the kinetic energy and speed of particles; it does not weaken the forces between them. ... Individual particles in liquids and gases have no fixed positions and move chaotically.
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Among these three halogen Bromine has the greatest atomic radius. As Bromine is present in 4rth period it outermost electrons are present in 4rth shell, so greater the number of shells greater is the size of an atom. While, in case of chlorine and fluorine they are present in group 3 and 2 respectively.
Answer:
Most soils have pH values between 3.5 and 10. In higher rainfall areas the natural pH of soils typically ranges from 5 to 7, while in drier areas the range is 6.5 to 9. Soils can be classified according to their pH value: 6.5 to 7.5—neutral
Explanation:
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The partial pressures of gases in air at 760 mmHg are N₂ (592.8 mmHg), O₂ (159.6 mmHg) and Ar (7.6 mmHg).
<h3>What is partial pressure?</h3>
Partial pressure is the pressure of a gas in a mixture of gases.
Air is a mixture of gases with 78% N₂, 21% O₂, 1% Ar and other gases in trace amounts. The partial pressure of a gas is proportional to its percentage.
Let's calculate the partial pressures of these gases, considering that the atmospheric pressure is 760 mmHg.
pN₂ = 760 mmHg × 78% = 592.8 mmHg
pO₂ = 760 mmHg × 21% = 159.6 mmHg
pAr = 760 mmHg × 1% = 7.6 mmHg
The partial pressures of gases in air at 760 mmHg are N₂ (592.8 mmHg), O₂ (159.6 mmHg) and Ar (7.6 mmHg).
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12 is the electron number of magnesium