Matter Review Game

1. Matter Review Game FRGMS Super Scientists

3. Awesome you got the correct answer.

4. Q1 • What is the substance being dissolved in a solution called? • A) solvent • B) solute • C) precipitate • D) mixture

5. Q1-r • Solutions Solute: is the substance that is dissolved to form a solution • Solvent: is the dissolving substance • Precipitate: is a solid that forms in a solution. If you're not part of the solution, you're part of the precipitate!

6. Q2 • What is the surface tension in a cup of water caused by? • a) attractive forces between the cup and the water • b) attractive forces between water molecules • c) adhesive forces between water molecules • d) adhesive forces between the cup and the water

7. Q2-r • Surface 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.

8. q3 • Which of the following types of substance would be least likely to dissolve in water? • a) a non-polar molecule like cholesterol • b) a polar molecule like ethyl alcohol • c) an ionic compound like magnesium chloride • d) a polar molecule like fruit sugar (fructose)

9. q3r • Will all solvents dissolve all solutes?No. Generally both solvents and solutes are separated into two types: polar/ionic and non-polar. • The rule of thumb is that "like dissolves like". Polar/ionic solvents dissolve polar/ionic solutes and non-polar solvents dissolve non-polar solutes. For example, water is a polar solvent and it will dissolve salts and other polar molecules, but not non-polar molecules like oil • http://www.climatechangematters.net.au/LOTS/Chem/sub/sol3/sol3.htm

10. q4 • When aqueous solutions of table salt and silver nitrate are mixed, a white solid forms. This solid is called ____________. • a) soluble • b) a precipitate • c) an alloy • d) a solute

11. q4r • Solutions Solute: is the substance that is dissolved to form a solution • Solvent: is the dissolving substance • Precipitate: is a solid that forms in a solution. If you're not part of the solution, you're part of the precipitate!

12. q5 • Which of the following properties is not a characteristic of an acid solution? • a) a sour taste • b) conducts electricity • c) feels slippery • d)corrosive to certain metals

13. q5r

14. q6 • The measure of the average kinetic energy of the particles of a substance is • a) temperature • b) heat • c) thermal energy • d) kinetic energy.

15. q6r • The average kinetic energy of the individual particles is the temperature.

16. q7 • The __________ is a unit of force • a) Pascal • b) Atmosphere • c) Newton • d) Kilopascal

17. QR7 • Force is a push or a pull; it is measured in Newtons.

18. q8 • How 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.

19. q8r • http://library.thinkquest.org/3659/acidbase/ph.html • Each number on the pH scale represents a ten times change.

20. q9 • Why is a cork able to float on water? • a) It’s a crystalline solid • b) It has equal density to water • c) It is small in size • d) It is less dense than the water

21. q9r • The simple answer to your question would be buoyancy.  • The cork is less dense than the water. • Less dense substances will float above more dense substances. • http://youtu.be/-CDkJuo_LYs

22. q10 • Archimedes’ principle helps to explain which relationship? • a) kinetic energy and density • b) temperature and density • c) pressure and density • d) buoyancy and density

23. q10r • The buoyant force on an object is equal to the weight  of the fluid displaced by the object. http://youtu.be/xniW3_afO-0

24. q11 • A solution with a pH of 13 is _________________. • A) weak acid • B) weak base • C) strong acid • D) strong base

25. Q11 r

26. q12 • Viscosity is a measure of a fluid’s _______________. • A) resistance to flow • B)adhesive forces • C) average kinetic energy • D) buoyancy

27. q12a • Viscosity is a measurement of the flow properties of a material expressed as its resistance to flow. • Or more simply • Higher viscosity means thicker, lower viscosity means more free-flowing.

28. q13 • Kinetic energy is the ______________ of motion. • A) temperature • B) energy • C) heat • D) state

29. q13r • Kinetic energy is the energy of motion –while potential energy is the energy of position. • http://youtu.be/ASZv3tIK56k

30. q14 • A solution that contains a large amount of solute compared to solvent is described as ________________. • A) dilute • B) heterogeneous • C) unsaturated • D) concentrated

31. q14r • Concentration & Saturation • Dilute- This is too weak- not very much solute in the solvent • Saturated- This is just right- the solvent has dissolved all the solute it can. • Super-saturated- This is too strong-too much solute-some is just sitting on the bottom and cannot dissolve

32. q15 • A solid might be less soluble in a liquid when you decrease what? • A)particle size • B) pressure • C) temperature • D) container size

33. q15r • The solubility of solutes is dependent on temperature. When a solid dissolves in a liquid, a change in the physical state of the solid similar to melting takes place. • Think is it easier to mix cocoa powder into cool or warm milk?

34. q16 • The atmosphere of Earth is an example of a ______________________ solution. • A) liquid-liquid • B)gas-liquid • C) gas-gas • D) solid liquid

35. q16r • An example of a gas gas solution can be one of many things in the world around us. One good example that is out there is actually the air around us. It's something we breath in everyday without even realizing that it's made up from gases. 80% nitrogen gas with about 20% oxygen gas dissolved in it, plus small amounts of other gases mixed in it, making it exactly what we need to live and survive.

36. q17 • Which is equal to the buoyant force of an object? • A) volume of an object • B) weight of the displaced fluid • C) weight of the object • D) volume of the fluid

37. q17r • When an object is placed in a fluid, the fluid exerts an upward force we call the buoyant force. • The buoyant force equals the weight of the fluid displaced.

38. q18 • Stainless steel is an example of a _______________ solution. • A) liquid -solid • B) solid –liquid • C) solid-solid • D) gas-solid

39. q18r •  Stainless is a steel alloy with a minimum of 10.5% chromium content by mass. • Stainless steel does not readily corrode, rust or stain with water as ordinary steel does • It is an alloy made from two metals that are solids in their normal state.

40. q19 • Pascal’s principle can be applied to • A) all states of matter • B) solids and gasses only • C) solids and liquids only • D) any matter that can flow

41. q19r • Pascal’s principle that states that pressure exerted anywhere in a confined fluid is transmitted equally in all directions throughout the fluid. • A fluid is a substance that has no fixed shape and yields easily to external pressure and is able to flow easily.

42. q20 • The amount of table sugar that can be dissolved in 1 kg of water can be increased by ______________. • A)stirring the solution • B) heating the solution • C) breaking the sugar into smaller pieces • D) doing any of the above

43. q20r • http://www.solubilityofthings.com/basics/factors_affecting_solubility.php • Temperature increases solubility • Stirring increases solubility • Smaller pieces will dissolve more quickly

44. q21 • A solution that holds all the solute it can under the circumstances is ___________. • A) saturated • B)unsaturated • C) dilute • D)supersaturated

45. q21r • Concentration & Saturation • Dilute- This is too weak- not very much solute in the solvent • Saturated- This is just right- the solvent has dissolved all the solute it can. • Super-saturated- This is too strong-too much solute-some is just sitting on the bottom and cannot dissolve

46. q22 • The solubility of sodium chloride (NaCl or table salt) in water at 10˚C 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) saturated • B) dilute • C) concentrated • D) acidic

47. q22r • If NaCl is soluble at 35g NaCl at 10˚C100g H20 then 35g NaCl = ___X___ 100g H20 50g H20 • x=17.5g NaCl so anything less is dilute

48. q23 • The freezing point of a substance is_________________ the melting point of a substance • A) greater than • B) less than • C)equal to • D) unrelated to

49. q23r • Solids have a characteristic melting point, the temperature at which the solid melts to become a liquid. Liquids have a characteristic temperature at which they turn into solids, known as their freezing point. In theory, the melting point of a solid should be the same as the freezing point of the liquid. In practice there are small fluctuations.

50. q24 • Choose the best match • neutralization • a) oil in water • b) reaction between an acid and base • c) turns different colors in acids and bases • d) another name for homogenous mixtures