Answer:
k
Explanation:
They must obey the Law of Conservation of Mass that states that matter cannot be created or destroyed, it is conserved. Atoms are never lost or gained in chemical reactions, they are rearranged. The mass of the reactants must equal the mass of the products.
Answer:
Explanation:
For transitions:
So, and (As the hydrogen has to ionize)
Thus,
Answer:
Potassium Nitrate
KNO3 is a chemical compound with chemical name Potassium Nitrate. Potassium nitrate also called saltpeter or niter, a white solid soluble in water formed by fractional crystallization of sodium nitrate and potassium chloride solutions.
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Answer:
a. C. volumetric flask
b. B. Measure out x mL using a volumetric pipet
c. 168.75mL
d. B. Add the correct amount of stock solution then fill to the 250 mL mark with water.
Explanation:
- The volumetric flask is mainly used in analytical chemistry to contain standard solutions or to prepare dilutions of a certain concentration of a reagent.
- The volumetric pipette is used to deliver a given volume with greater precision and accuracy.
- To make a dilution, the formula C1*V1 = C2*V2 is used where C is the concentration of the solution, in this case of molarity. V is the volume of the solution in ml and terms 1 and 2 correspond to the concentrated and diluted solutions respectively.
The simplest level at which life may exist is a cell