1) Match the Definition to the word. 1. when molecules stick to one another A hydrogen hond charged ends 2.midecules that contain oppositely 11. surface tension C.polar 3.special type of cohesion when a gas and a liquid meet causing the top D.adhesion layer of liquid to act like a thin sheet. Ecohesion 2) lonic Bonds are between __ a) Two non-metals c) Metal and Nonmetal b) Two metals d) Metalloid and Nonmetal 3) Cations are negatively charged and Anions are positively charged. a) True b) b) False 4) What subatomic particle(s) exis in the nucleus? a) Electrons b) Protons c) Neutrons d) B and C 5) Circle any of the following that CANNOT be dissolved in water; (more then one correct answer) a) Polar covalent bonds b) Oil c) Soluble Ionic bonds d) Non-polar covalent bonds 6) Hydroxide ion mixed with lead ion (2+) will form a precipitate a) True b) False 7) The amount of substance dissolved in a certain volume of a solvent is __ a) Molarity c) Density b) Concentration d) None of the above 8) The compound AgBr is. __ a)Soluble b) Insoluble 9) The compound NaOH is... __ a) Soluble b) Insoluble 10) The compound Magnesium Sulfate is __ a)Soluble b) Insoluble 11) What two new compounds form if the solutions. AgNO_(3) and NH_(4)OH, were mixed. Circle the new formed compound t would precipitate (insoluble). 12) What is the molarity of the following solution? a) 3.5 mol KCl in 355 mL of solution b) 12.3gCaF_(2) 350 mL of Solution

1) Match the Definition to the word.<br />1. when molecules stick to one another<br />A. hydrogen bond<br />2. molecules that contain oppositely charged ends<br />C. polar<br />3. special type of cohesion when a gas and a liquid meet causing the top layer of liquid to act like a thin sheet.<br />B. surface tension<br />4. when molecules stick to other types of molecules<br />D. adhesion<br />5. the attraction between molecules of the same substance<br />E. cohesion<br /><br />2) Ionic Bonds are between __<br />c) Metal and Nonmetal<br /><br />3) Cations are negatively charged and Anions are positively charged.<br />b) False<br /><br />4) What subatomic particle(s) exist in the nucleus?<br />d) B and C (Protons and Neutrons)<br /><br />5) Circle any of the following that CANNOT be dissolved in water; (more than one correct answer)<br />b) Oil<br />d) Non-polar covalent bonds<br /><br />6) Hydroxide ion mixed with lead ion $(2+)$ will form a precipitate<br />a) True<br /><br />7) The amount of substance dissolved in a certain volume of a solvent is __<br />b) Concentration<br /><br />8) The compound AgBr is __<br />b) Insoluble<br /><br />9) The compound NaOH is... __<br />a) Soluble<br /><br />10) The compound Magnesium Sulfate is __<br />a) Soluble<br /><br />11) What two new compounds form if the solutions $AgNO_{3}$ and $NH_{4}OH$ were mixed. Circle the new formed compound that would precipitate (insoluble).<br />The two new compounds formed are $AgOH$ and $NH_{4}NO_{3}$. The compound that would precipitate (insoluble) is $AgOH$.<br /><br />12) What is the molarity of the following solution?<br />a) 3.5 mol KCl in 355 mL of solution<br />Molarity = moles of solute / liters of solution<br />Molarity = 3.5 mol / 0.355 L = 9.86 M<br /><br />b) $12.3gCaF_{2}$ in 350 mL of Solution<br />Moles of $CaF_{2}$ = 12.3 g / (78.08 g/mol) = 0.157 mol<br />Molarity = 0.157 mol / 0.35 L = 0.449 M