Duncan UNIT 2 - MATTER & CHANGE 2 CLASSIFICATION OF MATTER WORKSHEET Check the appropriate categories for the substances listed below. All substances ...
Mixtures and Pure Substances Matter can be classified into two groups: mixtures and pure substances. Mixtures are the most common form of matter and consist of
UNIT 3: Pure substances and mixtures 1º ESO Susana Morales Bernal. 1. To know that a substance is identified according to its characteristic properties like: density
VOCABULARY UNIT 3: PURE SUBSTANCES AND MIXTURES 2º ESO. ENGLISH. SPANISH. Alloy. Aleación. Atom. Átomo. Bunsen burner. Mechero Bunsen. Clock glass. Vidrio de reloj. Condenser. Tubo refrigerante. Container. Recipiente. Compound. Compuesto. Crystallisa
pure substance. • mixture. Q identify the difference between a pure substance and a mixture, according to the particle theory of matter. What is the Difference Between a Pure Substance and a. Mixture? Matter is anything that ..... If you had a mixtur
c. To remove leaves from a swimming pool filtration/mechanical separation d. To obtain pure sugar from a solution distillation/evaporation e. To determine whether the colouring in a fruit juice is a single substance or a mixture of coloured substance
Identify each material as either a mixture or pure substance. ... If the material is a pure substance, identify it as an element or a compound. Material. Mixture ... Homogeneous. 9. Pizza. Mixture. Heterogeneous. 10. Blood. Mixture. Heterogeneous. 11
A) Fill in the gaps with either DO or DOES and write an answer to each question. 1. ______ cats play football? No, they don't. 2. ______. Pamela Anderson have
Download 29 Jul 2013 ... G. Cholakov, S. Yanev, V. Markov, S. Stoyanov. 489. Journal of Chemical Technology and Metallurgy, 48, 5, 2013, 489-496. ESTERIFICATION OF MIXTURES OF PURE FATTY ACIDS WITH METHANOL. G. Cholakov, S. Yanev, V. Markov, S.
Download 29 Jul 2013 ... G. Cholakov, S. Yanev, V. Markov, S. Stoyanov. 489. Journal of Chemical Technology and Metallurgy, 48, 5, 2013, 489-496. ESTERIFICATION OF MIXTURES OF PURE FATTY ACIDS WITH METHANOL. G. Cholakov, S. Yanev, V. Markov, S.
United States Department of Justice Drug Enforcement Administration Office of Diversion Control . P. harmacist’s . M. anual . An Informational Outline of the
Part Two: Physical or Chemical Change? Indicate with a 'P' or a 'C' which type of change is taking place. 1. ______ glass breaking. 10. ______ mixing salt and water. 2. ______ hammering wood together. 11. ______ mixing oil and water. 3. ______ a rust
Answers Worksheet on Chemical vs Physical Changes #1 ... Worksheet #2 Physical/Chemical Properties/Changes I. Physical Chemical Solids Liquids
KEY: WORKSHEET ON CHEMICAL VS PHYSICAL PROPERTIES AND CHANGES Keep this in your binder as a study guide! Background: Keeping the difference between physical and
En La Crisis del Dólar, que se publicó en 2003, examinaba cómo esos desequilibrios glo- ... hipotecarios– como deben hacer si pretenden obtener de ellos algún rédi- to. ... intereses del crédito. Todas las burbujas acaban estallando, y cuando esto su
Key Benefits: • Powerful, broad-spectrum enzyme • Supports optimal digestion* • Assists digestion of all food types* What is it? Pure Enzymes is a powerful
1 Agency for Toxic Substances and Disease Registry. The mission of the Agency for Toxic Substances and Disease Registry (ATSDR) is to prevent or
fragrant breeze is slowly blowing. With charming calls, the peacocks, peahens, çuka, säré and papéhä ...... in the lake of His cheeks, and this splendour increases even fur- ther the beauty of His cheeks. When He smiles with enjoyment, ...... sumadhu
them are Scrum and Kanban while Scrumban is mixed guideline set of Scrum and ... Kanban is a Lean scheduling manufacture system developed in Japan
2 What was the main goal of the stockholders who financed Jamestown? F Growing cotton G Drawing maps H Building ships J Making money 1 Which resources do
CONTROLLED DANGEROUS SUBSTANCES LAW AND PUBLIC SAFETY Chapter 45H Page 2 of 64 Last Revision Date: 9/8/2015 CHAPTER TABLE OF CONTENTS
Azeotropic Data for Binary Mixtures 6-211 4. Lecat, M., L’Azeotropisme, Monograph, L’Auteur, Brussel, 1918. 5. Lecat, M., Tables Azeotropiques
Title: Separate This (Mixtures and Solutions) ... sand or iron filings in their eyes. Students should be warned to be careful not to get the sand and iron filings in
Designing and Proportioning Normal Concrete Mixtures ... In mix design, the water to cementitious materials ratio, W/CM, is often used synonymously with water to
If a Ferrari, with an initial velocity of 10 m/s, accelerates at a rate of 50 m/s. 2 for 3 seconds, what will its final velocity be? 6. A car traveling at a speed of 30.0 m/s encounters an emergency and comes to a complete stop. How much time will it
UNIT 2 - MATTER & CHANGE
HOMOGENEOUS VS. HETEROGENEOUS MATTER WORKSHEET Classify the following as either homogeneous or heterogeneous. 1.
flat soft drink (no bubbles)
9.
air (with smog)
2.
chocolate chip ice cream
10.
paint
3.
Italian salad dressing
11.
alcohol
4.
sugar
12.
iron
5.
soil
13.
beach sand
6.
aluminum foil
14.
pure air
7.
black coffee
15.
chunky spaghetti sauce
8. sugar water ------------------------------------------------------------------------------------------------------------------PURE SUBSTANCES VS. MIXTURES WORKSHEET Classify the following as pure substances or mixtures. 1.
sodium
11.
iron
2.
water
12.
salt water
3.
soil
13.
chocolate chip ice cream
4.
coffee
14.
nitrogen
5.
oxygen
15.
eggs
6.
70% isopropyl alcohol
16.
blood
7.
carbon dioxide
17.
table salt
8.
cake batter
18.
nail polish
9.
air
19.
milk
20.
soda
10.
Duncan
chicken noodle soup
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UNIT 2 - MATTER & CHANGE
CLASSIFICATION OF MATTER WORKSHEET Check the appropriate categories for the substances listed below. All substances will have a check in more than one column. Substance
Heterogeneous Homogeneous Pure Matter Matter Substance
Solution
Element
Compound
Mixture
lead metal table salt (NaCl) Kool-Aid drink vegetable soup oxygen gas distilled water concrete
Duncan
pure gold brass metal flat 7-Up soda raw egg (cracked open) air
pure iron iron rust (Fe2O3) soil
baking soda (NaHCO3)
PHYSICAL VS. CHEMICAL CHANGES 1 WORKSHEET Classify the following as being a chemical or a physical change. 1.
Sodium hydroxide dissolves in water.
2.
Hydrochloric acid reacts with potassium hydroxide to produce a salt, water, and heat.
3.
A pellet of sodium is sliced in two.
4.
Water is heated and changed to steam.
5.
Potassium chlorate decomposes to potassium chloride and oxygen gas.
6.
Iron rusts.
7.
When placed in water, a sodium pellet catches on fire as hydrogen gas is liberated and sodium hydroxide forms. 2
UNIT 2 - MATTER & CHANGE 8. Evaporation. 9.
Ice melting.
10.
Milk sours.
11.
Sugar dissolves in water.
12.
Wood rotting.
13.
Pancakes cooking on a griddle.
14.
Grass growing in a lawn.
15.
A tire is inflated with air.
16.
Food is digested in the stomach.
17.
Water is absorbed by a paper towel.
PHYSICAL VS. CHEMICAL PROPERTIES & CHANGES 2 WORKSHEET Part 1 - Indicate whether each of the following describes a chemical or a physical property. 1. Sulfur is a bright yellow solid. 2. Sulfur has a low melting point. 3. Sulfur causes silver to tarnish. 4. Aluminum is very malleable. 5. Monuments made of copper corrode in acid rain. 6. Copper is a good conductor of electricity.
Duncan
Part 7. 8. 9. 10. 11. 12. 13.
2 - Classify the following as chemical or physical properties. color 14. solubility reactivity 15. expansion flammability 16. melting point odor 17. rusting porosity 18. reacts with oxygen stability 19. density ductility 20. conductivity
Part 21. 22. 23. 24. 25. 26. 27. 28. 29. 30.
3 - Indicate whether these changes are chemical, physical, or nuclear. Lead reacts with acid in a car battery. 31. burning of gasoline Gasoline burns in a car engine. 32. liquefying oxygen Frost forms on a car window. 33. digestion of food Formation of plutonium from uranium. 34. tarnishing of silver Formation of clouds from water vapor. 35. magnetizing steel formation of dew on grass 36. reacting sodium and water melting of ice cream 37. dissolving sugar in water exploding of dynamite 38. burning sugar to produce carbon fission of uranium 39. decay of radon to lead sublimation of moth balls 40. fusion of hydrogen into helium
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UNIT 2 - MATTER & CHANGE
OBSERVING A CHEMICAL REACTION (REACTION IN A BAG) PURPOSE: To learn how to make careful observations during a laboratory experiment and to illustrate several common indicators of a chemical reaction MATERIALS: zip lock bag, sodium bicarbonate, calcium chloride, teaspoon, dropper pipet, balance, phenol red solution PROCEDURE: PART ONE 1.) Open a zip lock bag. Add about 1 spoonful of sodium bicarbonate to the bag. 2.) Completely fill a plastic pipet with phenol red solution. (Pay close attention to your instructor’s demonstration of this technique.) 3.) Place the filled dropper pipet inside the zip lock bag and seal it completely. 4.) Fold the zip lock bag in thirds. 5.) Place your zip lock bag and all of its contents on the balance. Record the mass on your paper. 6.) Unfold the zip lock bag and squeeze the phenol red solution into the sodium bicarbonate. (Be sure to empty the dropper pipet of all of the phenol red.) Record your observations. 7.) Place the zip lock bag on the balance again. Record this mass on your paper.
Duncan
8.) Pour the contents of your zip lock bag down the sink. Rinse and dry your bag. PART TWO 1.) Open a zip lock bag. Add about 1 spoonful of calcium chloride to the bag. 2.) Repeat steps 2 – 7 from Part One.
3.) Pour the contents of your zip lock bag down the sink. Rinse and dry your bag.
PART THREE 1.) Open a zip lock bag. Add about 1 spoonful each of sodium bicarbonate and calcium chloride to the bag. 2.) Repeat steps 2 – 7 from Part One.
3.) Pour the contents of your zip lock bag down the sink. Rinse and dry your bag. 4.) Clean up your lab station and return to your seat.
DATA TABLE: TRIAL
OBSERVATIONS
MASS BEFORE
MASS AFTER
sodium bicarbonate calcium chloride sodium bicarbonate & calcium chloride CONCLUSIONS: 1.) Did your observations agree with the Law of Conservation of Mass? Explain. 2.) Write a paragraph (that means complete sentences!) summarizing how chemists know when a chemical change occurs. 4
UNIT 2 - MATTER & CHANGE GEOGRAPHY OF THE PERIODIC TABLE (side 1) INSTRUCTIONS FOR SIDE 1: 1.) Darken the line that separates metals and nonmetals in black. 2.) Color the metalloids light blue. (Metalloids have atomic numbers 5, 14, 32, 33, 51, 52, and 84.) 3.) Color the metals yellow. (Metals are on the left side of the “staircase” line that separates metals from nonmetals – see #1 above. NOTE: Hydrogen (top left of Periodic Table) is considered a NONmetal.) 4.) Color the noble gases green. (Not ALL gases – just the group called the noble gases.) 5.) Color the nonmetals pink. (Nonmetals are the boxes you haven’t yet colored to the right of the “staircase” line.) 6.) Write the number of each group at the top of the column (1 – 18). 7.) Draw diagonal lines (from the lower left to the upper right - /) in the boxes of the elements that are gases at room temperature. (NOTE: The boxes that you will draw these lines in will already be colored.) 8.) Draw diagonal lines (from the upper left to the lower right - \) in the boxes of the elements that are liquids at room temperature. (NOTE: These boxes will also already be colored.)
Duncan
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UNIT 2 - MATTER & CHANGE GEOGRAPHY OF THE PERIODIC TABLE (side 2) INSTRUCTIONS FOR SIDE 2: (NOTE: There will be parts of this Periodic Table that are not colored.) 1.) Color the noble gases blue. 2.) Color the transition metals yellow. 3.) Color the alkaline earth metals orange. 4.) Color the halogens green. 5.) Color the inner transition elements purple. (The inner transition elements are the two rows at the bottom – seemingly separated from the rest of the Periodic Table.) 6.) Color the alkali metals red. (Hydrogen is not considered an alkali metal.) 7.) Write the number of each group at the top of the column (1 – 18). 8.) Draw diagonal lines (from the lower left to the upper right - /) in the boxes of the elements in the Lanthanide Series. (NOTE: The boxes that you will draw these lines in will already be colored.) 9.) Draw diagonal lines (from the upper left to the lower right - \) in the boxes of the elements in the Actinide Series. (NOTE: These boxes will also already be colored.)
