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1.1-1.2 Study Question Answers Chemistry. 1.1 1.Photosynthesis Equation was CO 2 + H 2 O  C 6 H 12 O 6 + O 2.

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Presentation on theme: "1.1-1.2 Study Question Answers Chemistry. 1.1 1.Photosynthesis Equation was CO 2 + H 2 O  C 6 H 12 O 6 + O 2."— Presentation transcript:

1 Study Question Answers Chemistry

2 1.1 1.Photosynthesis Equation was CO 2 + H 2 O  C 6 H 12 O 6 + O 2

3 2. Sucrose (or table sugar), carbon dioxide, and water

4 3. Artificial sweeteners or synthetic fibers

5 4. Basic research is carried out for the sake of increasing knowledge whereas applied research is carried out to solve a problem.

6 Has mass and takes up space

7 2. An atom

8 3. Elements, element

9 4. carbon, oxygen, hydrogen

10 5. compound

11 6. Water (H 2 O) and carbon dioxide (CO 2 )

12 7. Extensive properties depend on the amount of matter present whereas intensive properties are the same regardless of how much of the substance is present.

13 8. volume, mass, and amount of energy in a substance

14 9. Melting point, boiling point, density, and ability to conduct electricity Also: ability to conduct heat

15 10. A physical property is a characteristic that can be observed or measured without changing the identity of the substance whereas a chemical property is observed when the substance undergoes changes that transform it into a different substance.

16 11. Melting point and boiling point

17 12. Ability to burn (combustibility, flammability), ability to rust, and ability to tarnish

18 13. A physical change does not involve a change in the identity of the substance whereas in a chemical change one or more substances are converted into different substances.

19 14. grinding, cutting, melting, and boiling

20 15. Changes of state such as melting and boiling

21 RustingMelting Milk souringCooking FlammableTarnishing FreezingEvaporating CorrodingDensity ViscosityFreezing point Boiling pointConducts electricity Melting pointBuoyancy ReactivityConducts heat Tooth decayingBurning CondensingDissolving

22 Rusting – CMelting – P Milk souring – CCooking – C Flammable - CTarnishing – C Freezing – PEvaporating – P Corroding– CDensity– P Viscosity– PFreezing point– P Boiling point– PConducts electricity– P Melting point– PBuoyancy– P Reactivity – CConducts heat – P Tooth decaying– CBurning – C Condensing – PDissolving – P

23 4 states of matter 16. Solid  has a definite shape and a definite volume Liquid  has a definite volume but an indefinite shape Gas  has neither a definite shape nor a definite volume Plasma  a high temperature physical state of matter in which atoms lose most of their electrons

24 17. Solids  particles are held together by strong attractive forces and vibrate about fixed points Liquids  particles in a liquid move more rapidly than in a solid, overcoming the strong attractive forces between them and allowing the liquid to flow Gases  particles move very rapidly and are at great distances from one another; the attractive forces between gas particles have less of an effect than in liquids and solids

25 18. Chemical reactions

26 19.ReactantReactantProduct carbon + oxygen  carbon dioxide

27 20. yields

28 21. Although energy can be absorbed or released in a change, it is not destroyed or created. It simply assumes a different form.


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