18. Which one of the following statements is incorrect? Tbiolloo 6 ton ei gniwollot er to snorbidw a. BF3 molecules interact only with London forces. nol b. CH4 molecules interact only with London forces. c. NH3 molecules interact with hydrogen bonding. d. SF4 molecules interact only with London forces. no sonsizduz srit to etom birtw ni bos sonsteduz bavlozzib novige of 359q2s1 ritiw indiliups ni ton neitulos A" 19. How can a supersaturated solution of sodium acetate be made? inoiluloz to sqyt 1srlw as wondei "avicat a. A solute is finely divided into a powder before adding to a solution to insure (extra' dissolving of solute. b. A solute is added slowly to a solvent while the solvent is mechanically stirred at high speed. c. Solvent is heated, then saturated with NaC₂H3O2 and then cooled slowly back to room temperature. W
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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