Answer:
Mode
Explanation:
The mode is the number that appears most frequently in a data set. A set of numbers may have one mode, more than one mode, or no mode at all. Other popular measures of central tendency include the mean, or the average (mean) of a set, and the median, the middle value in a set.
<span>[Ag+]3[PO4]3-
Ag3PO4(aq) ----> 3Ag^+(aq) + PO4^3-(aq)
In pure water, the molarity of PO4^3-, which is 1.76x10^-5 M, also represents the molar solubility of Ag3PO4, that means that max 1.76x10^-5 mol Ag3PO4 dissolves in 1L (1000 mL) of water. When the amount of water is halved to 500 mL, the solubility of Ag3PO4 is also halved. (8.8x10^-5 mol).
Ag3PO4(aq) ----> 3Ag^+(aq) + PO4^3-(aq)
8.8x10^-5 mol ..... 3x8.8x10^-5 mol = 2.64x10^-4 mol
[Ag^+] = n / V = 2.64x10^-4 mol / 0.500 L = 5.28x10^-4 M</span>
Answer:
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I would say the correct answer would probably be that to explain the approx 100 years between Dalton (early 1800's) atomic theory and JJ Thomson's discovery of the smaller particle the electron was that Thomson had the use of a cathode ray tube that helped to determine the existence of negatively charged particles about 2000 times lighter than a hydrogen atom and therefore a smaller particle than the atom. The cathode ray tube was not invented until 1897, when Thomson began experimenting with it.
An exothermic reaction is a chemical reaction that releases energy through light or heat. It is the opposite of an endothermic reaction. Expressed in a chemical equation: reactants → products + energy. Exothermic Reaction means "exo" meaning releases and "thermic"