Answer:
B. They are dimensionless ratios of the actual concentration or pressure divided by standard state concentration, which is 1 M for solutions and 1 bar for gases.
Explanation:
Activity of a substance is defined as the ratio of an effective concentration or an effective pressure to a standard state pressure or a standard state pressure. It is usually a unit less ratio.
Concentrations in an equilibrium constant are really dimensionless ratios of actual concentrations divided by standard state concentrations. Since standard states are 1 M for solutes, 1 bar for gases, and pure substances for solids and liquids, these are the units to be used.
Hence, activity is a fudge factor to ideal solutions that correct the true concentration. Activity of a gas and solute concentration is a ratio with no unit.
The branches but also the leaves do give most light which grows both ways so
The correct answer is Applied Biochemistry.
In applied biochemistry the knowledge and methods of biochemistry is applied to solve real world problems like to discover effective medicine in the treatment of life threatening diseases such as cancer, to improve productivity in agriculture, to treat diseases caused by the mutation in the metabolic pathway and more.
Answer:
Explanation:
One
Pressure will favor the side with the least number of mols if it the larger number of moles counts only the gases. (Le Chetalier's Principle). In this case both CaCO3 and CaO are not soluble in water. The only gas is CO2. Since it represents the most number of mols the reactant is favored.
More or Less are very troublesome words in beginning science. Make sure you understand their meaning for this question. The more pressure applied, the more the reactants will be favored and the equation shifts left.
Two
Fe and Fe3O4 are both solids. It depends on the form that water takes. Looking it up, it is shown to be in a gas form. That means if you increase the pressure, nothing will happen. That is not your question, but you should note it.
The answer to your question is you increase the concentration of Fe or H2O, the equilibrium will shift right.
If you add more Fe3O4 or hydrogen it will shift left.
Chemists say that if you alter the equilibrium the equation will shift in the opposite direction to compensate for the action you have taken.
Answer:
LiF (lithium fluoride)
Explanation:
Lithium ions have a charge of +1 and fluoride ions have a charge of -1. The formula unit for lithium fluoride is LiF, which means that the lithium and fluoride ions are present in a 1:1 ratio. So the positive and negative charges cancel each other, and the compound lithium fluoride is neutral.