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Q2-rSurface tension of water is a result of the strong attraction of water molecule to each other. Water is a polar molecule and likes to stick together.

Q2What is the surface tension in a cup of water caused by?a)attractive forces between the cup and the waterb) attractive forces between water moleculesc) adhesive forces between water moleculesd) adhesive forces between the cup and the waterq3Which of the following types of substance would be least likely to dissolve in water?a) a non-polar molecule like cholesterolb) a polar molecule like ethyl alcoholc) an ionic compound like magnesium chlorided) a polar molecule like fruit sugar (fructose)q4When aqueous solutions of table salt and silver nitrate are mixed, a white solid forms. This solid is called ____________.

a) solubleb) a precipitatec) an alloyd) a solute

q5Which of the following properties is not a characteristic of an acid solution?

a) a sour tasteb) conducts electricityc) feels slipperyd)corrosive to certain metalsq6The measure of the average kinetic energy of the particles of a substance is

a) temperatureb) heatc) thermal energyd) kinetic energy.

q7The __________ is a unit of force

a) Pascalb) Atmospherec) Newtond) Kilopascalq8How does a solution with a pH of 2 compare to a solution with a pH of 1?

a) The pH 2 solution is two times as acidic as the solution with a pH of 1.b) The pH 1 solution is ten times as acidic as the solution with a pH of 2.c) The pH 1 solution is two times as basic as the solution with a pH of 2.d) The pH 2 solution is ten times as acidic as the solution with a pH of 1.q9Why is a cork able to float on water?

a) Its a crystalline solidb) It has equal density to waterc) It is small in sized) It is less dense than the waterq10Archimedes principle helps to explain which relationship?

a) kinetic energy and densityb) temperature and densityc) pressure and densityd) buoyancy and densityq11A solution with a pH of 13 is _________________.

A) weak acidB) weak baseC) strong acidD) strong base q12Viscosity is a measure of a fluids _______________.

A) resistance to flowB)adhesive forcesC) average kinetic energyD) buoyancyq13Kinetic energy is the ______________ of motion.

A) temperatureB) energyC) heatD) stateq14A solution that contains a large amount of solute compared to solvent is described as ________________.A) diluteB) heterogeneousC) unsaturatedD) concentratedq15A solid might be less soluble in a liquid when you decrease what?

A)particle sizeB) pressureC) temperatureD) container size

q16The atmosphere of Earth is an example of a ______________________ solution.

A) liquid-liquidB)gas-liquidC) gas-gasD) solid liquidq17Which is equal to the buoyant force of an object?

A) volume of an objectB) weight of the displaced fluidC) weight of the objectD) volume of the fluidq18Stainless steel is an example of a _______________ solution.

A) liquid -solidB) solid liquidC) solid-solidD) gas-solidq19Pascals principle can be applied to

A) all states of matterB) solids and gasses onlyC) solids and liquids onlyD) any matter that can flowq20The amount of table sugar that can be dissolved in 1 kg of water can be increased by ______________.

A)stirring the solutionB) heating the solutionC) breaking the sugar into smaller piecesD) doing any of the aboveq21A solution that holds all the solute it can under the circumstances is ___________.

A) saturatedB)unsaturatedC) diluteD)supersaturatedq22The solubility of sodium chloride (NaCl or table salt) in water at 10C is 32g in 100g of water (H2O). If 14 g of NaCl are dissolved in 50g of H2O at 10 C, the solution is.

A)saturatedB) diluteC) concentratedD) acidicq23The freezing point of a substance is_________________ the melting point of a substance

A) greater thanB) less thanC)equal toD) unrelated toq24Choose the best match

neutralization

a) oil in waterb) reaction between an acid and basec) turns different colors in acids and basesd) another name for homogenous mixturesQ25In which case will an object float?

a) Buoyant force is greater than weightb) Buoyant force is less than weightc) Buoyant force is equal to weightd) buoyant force is zeroq26Choose the best matchtemperature

amount of substance that can dissolve in 100g of watera homogenous mixtureaverage kinetic energy of particlesformula for a hydroxide ion

q27Choose the best match

indicator

A) reaction between an acid and a baseB) a homogenous mixtureC) oil in waterD) turns different colors for acids and basesq28Choose the best match

solubility

a) small amount of solute in a given amount of solventb) large amount of solute in a given amount of solventc) amount of a substance that can dissolve in 100g waterd) formula for hydronium ionq29Choose the best match H30+

a) a homogenous mixtureb) formula for hydroxide ionc) Formula for hydronium iond) turns different colors in acids and basesq30Choose the best match

dilutea) small amount of solute in a given amount of solventb) large amount of solute in a given amount of solventc) amount of a substance that can dissolve in 100g waterd) formula for hydronium ion

q31Choose the best matchsolutiona) a homogenous mixtureb) formula for hydroxide ionc) Formula for hydronium iond) turns different colors in acids and bases

q32Choose the best match

insolublea) oil in waterb) reaction between an acid and basec) turns different colors in acids and basesd) another name for homogenous mixtures

q32r