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

Question

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

Answer 1

1) Match the Definition to the word.1. when molecules stick to one anotherA. hydrogen bond2. molecules that contain oppositely charged endsC. polar3. special type of cohesion when a gas and a liquid meet causing the top layer of liquid to act like a thin sheet.B. surface tension4. when molecules stick to other types of moleculesD. adhesion5. the attraction between molecules of the same substanceE. cohesion2) Ionic Bonds are between __c) Metal and Nonmetal3) Cations are negatively charged and Anions are positively charged.b) False4) What subatomic particle(s) exist in the nucleus?d) B and C (Protons and Neutrons)5) Circle any of the following that CANNOT be dissolved in water; (more than one correct answer)b) Oild) Non-polar covalent bonds6) Hydroxide ion mixed with lead ion

will form a precipitatea) True7) The amount of substance dissolved in a certain volume of a solvent is __b) Concentration8) The compound AgBr is __b) Insoluble9) The compound NaOH is... __a) Soluble10) The compound Magnesium Sulfate is __a) Soluble11) What two new compounds form if the solutions

and

were mixed. Circle the new formed compound that would precipitate (insoluble).The two new compounds formed are

and

. The compound that would precipitate (insoluble) is

.12) What is the molarity of the following solution?a) 3.5 mol KCl in 355 mL of solutionMolarity = moles of solute / liters of solutionMolarity = 3.5 mol / 0.355 L = 9.86 Mb)

in 350 mL of SolutionMoles of

= 12.3 g / (78.08 g/mol) = 0.157 molMolarity = 0.157 mol / 0.35 L = 0.449 M

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