Decide whether each of the following is water-soluble. If soluble, tell what ions are produced. (Use one answer blank per ion. If not soluble, enter "none" in both answer blanks.) These are the solubility rules for the ionic compounds in water at room temperature: Rule Applies to Lit, Na+, K+, Rb+, Cst, NH4+ Group 1 and ammonium compounds are soluble. C₂H3O₂, NO3, NO₂ Acetates, nitrates, and nitrites are soluble. Cl, Br, I 1 2 3 4 5 CIOs, CIO4 6 7 8 F- 9 SO4² CO3²- PO S2 10 OH a. BaBr₂ b. Ni(CH3 COO)2 c. CuSO4 d. MgCO3 Exceptions No common exceptions. Moderately soluble: AgCH, COO and AgNO3 Most chlorides, bromides, and iodides are soluble. Insoluble: AgCl, Hg₂Cl₂, PbCl₂, AgBr, Hg₂ Br2, PbBr2, Agl, HgI₂, Pbl₂ Insoluble: MgF₂, CaF2, SrF2, BaF2, PbF2 Statement Most fluorides are soluble. Most chlorates and perchlorites are soluble. Most sulfates are soluble. Most carbonates are insoluble. Most phosphates are insoluble. Most sulfides are insoluble. Most hydroxides are insoluble. No common exceptions. Insoluble: BaSO4, PbSO4, HgSO4 Moderately soluble: CaSO4, SrSO4, Ag₂SO4 (NH4)2 CO3, Na2CO3, K₂ CO₂ (NH4)3PO4, Na3PO4, K3 PO4 (NH4)2S, Na2S, K₂ S, MgS, CaS Soluble: LiOH, NaOH, KOH, Ba(OH)2 Moderately soluble: Ca(OH)2, Sr(OH)2
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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