<em>Answer</em>
A) amount of solute
<em>Explanation</em>
Dilution is adding more solvent to a solution to decrease the concentration of solute in a solution. The amount of solute does not change although the concentration, amount of solvent and the total volume does change.
An example of this would be adding more water (solvent) to lemonade to decrease the concentration of lemon juice (solute). Obviously this would increase the total volume because you are adding more water to the solution.
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Answer:
A metallic bond.
Explanation:
Potassium is a metal (alkali metal), hence its bonds are metallic bonds.
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(1) 14C also known as Carbon-14, is used to radio-date organic materials as well as earth materials.
Answer:copper(II) sulfate, CuSO4> 2-pentanol, C5H11OH> methane, CH4>propane, C3H8.
Explanation:
Solubility depends on the ability of solute to interact effectively with a solvent. If water is the solvent, it interacts effectively with ionic substances. copper II sulphate is ionic and will be the most soluble in water, 2-pentanol, will interact effectively with water via hydrogen bonding. Between methane and propane, methane will interact better with water since it has a shorter alkyl chain than propane
Answer (4)
Endothermic processes: are those in which occurs the absorption of heat.
the change of enthalpy (ΔH) is greater <span>than zero.
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