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How many oxygen atoms are there in the molecule C 12 H 22 O 11 ?

How many oxygen atoms are there in the molecule C 12 H 22 O 11 ?. Answer. 11 (eleven). 2. A substance that cannot be broken down into simpler substances is _________. Answer. An element. 3. Knowing the chemical properties of a substance will tell you how the substance ______. Answer.

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How many oxygen atoms are there in the molecule C 12 H 22 O 11 ?

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  1. How many oxygen atoms are there in the molecule C12H22O11?

  2. Answer 11 (eleven)

  3. 2. A substance that cannot be broken down into simpler substances is _________.

  4. Answer An element

  5. 3. Knowing the chemical properties of a substance will tell you how the substance ______.

  6. Answer React with other substances

  7. 4. The chemical formula for water means that each water molecule contains_____

  8. Answer Two hydrogen atoms and one oxygen atom

  9. 5. Which state of matter will hold its shape without a container?

  10. Answer solid

  11. 6. A liquid changes rapidly into a gas at the liquid’s ______.

  12. Answer Boiling point

  13. 7. Which of the following is NOT an example of a physical property?Choices: freezing point, boiling point, reactivity, or density

  14. answer reactivity

  15. 8. Matter is defined as __.

  16. Answer: Anything that takes up space (volume) or has mass.

  17. 9. Which of the following is an example of a gas-liquid mixture? Choices: Air we breathe, a carbonated drink, a helium balloon, or ice cubes

  18. Answer A carbonated beverage

  19. 10. Digesting food is an example of ____ change.

  20. Answer: chemical

  21. 11. Which of the following is an example of a physical change Choices: dissolving salt in water, burning wood into charcoal, cooking an egg, or rusting iron

  22. Answer Dissolving salt in water

  23. 12. A molecule of water is made from ____ combining 2 hydrogen atoms and one oxygen atom. Choices: physically, ionically, thermally, or chemically

  24. answer chemically

  25. 13. A physical property of gold is its _____ Choices: density, reactivity with powerful acids, or non-flammability

  26. answer density

  27. 14. You put one gram of salt into one liter of water and stir. The resulting liquid is an example of ___,

  28. answer Solution (most precise answer)

  29. 15. Grinding quartz crystals down to produce sand is an example of a _____.

  30. answer Physical change

  31. 16. A mixture of flour and water is called a ___ mixture because the substances do not dissolve.

  32. answer Suspension (most precise answer)

  33. 17. The ___ of a substance is defined as its mass divided by its volume.

  34. answer density

  35. 18. Aluminum, oxygen, and carbon are examples of ___.

  36. Answer Elements

  37. 19. Each molecule of iron oxide, Fe2O3 contains ___ atoms of iron.

  38. answer two

  39. 20. A change in color during a reaction is often a sign that a ___ has occurred

  40. answer Chemical reaction (chemical change)

  41. 21. We inhale oxygen and exhale carbon dioxide as a result of a ___ change in our bodies.

  42. answer chemical

  43. 22. Sound is NOT made of matter because it has no ___.

  44. answer mass

  45. 23. The chemical symbol O stands for the element ___.

  46. answer Oxygen (not capitalized) watch spelling!

  47. 24. A substance that is made of atoms of more than one type bound together is called a ___.

  48. Compound

  49. 25. A physical change differs from a chemical change in that ___ are formed

  50. answer In a physical change no new substances are formed.

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