Unit 1 study guide (Chapters 1 and 2)
Below you will find a list of tasks/questions. This is not “due” but I would suggest that you do it. This sheet is meant to prepare you for the test on Friday. If you fail to prepare then you should prepare to fail.
1) List and define the five branches of chemistry (organic, inorganic, physical, analytical, and biochemistry).
2) Define, compare and contrast intensive and extensive properties of matter.
3) Are filtration and distillation examples of physical separations or chemical separations?
4) Classify each of the below as being either an intrinsic property, a chemical property, or a physical property:
color, odor, flammable, size, inert, melting/freezing point, hardness, mass, ability to rust, ability to undergo any type of chemical reaction, pressure, malleability, volume
5) Classify each of the following as physical changes/reactions or chemical changes/reactions:
grating, melting, rusting, polishing, mixing blending, burning, grinding, decomposing, corroding, splitting, breaking, decaying, cutting, painting, spreading, fermenting, rotting, exploding, peeling, crushing
6) Energy is transferred to an object but none of the physical or chemical properties are changed. Has a chemical change taken place? Justify your answer.
7) When bread is placed in a toaster the white surface turns a golden brown. Is this change physical or chemical? Justify your answer.
8) What on the list below circle everything that CANNOT be classified as matter?
Light, air, salt, water, steel, nitrogen, oxygen, soup, blood, gold, pepper, wood, soil, salt water, Kool-aid, oil, oil and water, heat, water and lighter fluid, sugar (sucrose), baking soda, vinegar, stew, potassium, soft drinks, air
9) Define each of the following terms: Element, compound, homogeneous mixture, heterogeneous mixture. Which ones are pure substances? Which ones can be considered to be a single “phase”.
10) Create a “particle picture” for each of the terms in #9.
11) Classify each of the materials in #8 as being an element, compound, homogeneous mixture, or heterogeneous mixture.
12) Give an example of an atomic symbol and a chemical formula.
13) Write a chemical equation that contains at least one element and one compound. You don’t need to balance it but try to have the same “stuff” on both sides.
14) When you eat lunch you first chew up your food and then you swallow it. Once it’s in your stomach you digest it. Is chewing a chemical or a physical change? Digesting?
Unit 1 study guide (Chapters 1 and 2)
Below you will find a list of tasks/questions. This is not “due” but I would suggest that you do it. This sheet is meant to prepare you for the test on Friday. If you fail to prepare then you should prepare to fail.
1) List and define the five branches of chemistry (organic, inorganic, physical, analytical, and biochemistry).
2) Define, compare and contrast intensive and extensive properties of matter.
3) Are filtration and distillation examples of physical separations or chemical separations?
4) Classify each of the below as being either an intrinsic property, a chemical property, or a physical property:
color, odor, flammable, size, inert, melting/freezing point, hardness, mass, ability to rust, ability to undergo any type of chemical reaction, pressure, malleability, volume
5) Classify each of the following as physical changes/reactions or chemical changes/reactions:
grating, melting, rusting, polishing, mixing blending, burning, grinding, decomposing, corroding, splitting, breaking, decaying, cutting, painting, spreading, fermenting, rotting, exploding, peeling, crushing
6) Energy is transferred to an object but none of the physical or chemical properties are changed. Has a chemical change taken place? Justify your answer.
7) When bread is placed in a toaster the white surface turns a golden brown. Is this change physical or chemical? Justify your answer.
8) What on the list below circle everything that CANNOT be classified as matter?
Light, air, salt, water, steel, nitrogen, oxygen, soup, blood, gold, pepper, wood, soil, salt water, Kool-aid, oil, oil and water, heat, water and lighter fluid, sugar (sucrose), baking soda, vinegar, stew, potassium, soft drinks, air
9) Define each of the following terms: Element, compound, homogeneous mixture, heterogeneous mixture. Which ones are pure substances? Which ones can be considered to be a single “phase”.
10) Create a “particle picture” for each of the terms in #9.
11) Classify each of the materials in #8 as being an element, compound, homogeneous mixture, or heterogeneous mixture.
12) Give an example of an atomic symbol and a chemical formula.
13) Write a chemical equation that contains at least one element and one compound. You don’t need to balance it but try to have the same “stuff” on both sides.
14) When you eat lunch you first chew up your food and then you swallow it. Once it’s in your stomach you digest it. Is chewing a chemical or a physical change? Digesting?