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Chemistry Questions

Chemistry Questions

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Chemistry Questions

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  1. Chemistry Questions

  2. Question #1 • According to Bronsted-Lowry definition, a base is: W. A proton donor X. An electron donor Y. A proton acceptor Z. An electron acceptor

  3. Question #1 • According to Bronsted-Lowry definition, a base is: W. A proton donor X. An electron donor Y. A proton acceptor Z. An electron acceptor

  4. Question #2 • What element does the symbol Fe stand for?

  5. Question #2 • What element does the symbol Fe stand for? • Iron

  6. Question #3 • Magnesium can exist as three naturally occurring isotopes. These isotopes would all have the same: • W. atomic weight • X. number of neutrons • Y. number of protons • Z. nucleus

  7. Question #3 • Magnesium can exist as three naturally occurring isotopes. These isotopes would all have the same: • W. atomic weight • X. number of neutrons • Y. number of protons • Z. nucleus

  8. Question #4 • Carbohydrates are made of what three elements?

  9. Question #4 • Carbohydrates are made of what three elements? • Carbon, hydrogen, oxygen (C, H, and O)

  10. Question #5 • In the chemistry lab, for safety reasons, when a concentrated acid is mixed with water: • W. the water is always added to the acid • X. the acid is always added to the water • Y. these can only be mixed at cold temperatures • Z. these can never be mixed

  11. Question #5 • In the chemistry lab, for safety reasons, when a concentrated acid is mixed with water: • W. the water is always added to the acid • X. the acid is always added to the water • Y. these can only be mixed at cold temperatures • Z. these can never be mixed

  12. Question #6 • It is estimated that each person in the United States consumes an average of 100 pounds of sucrose each year. Which two simple sugars are linked to make a sucrose molecule?

  13. Question #6 • It is estimated that each person in the United States consumes an average of 100 pounds of sucrose each year. Which two simple sugars are linked to make a sucrose molecule? • Glucose and Fructose

  14. Question #7 • What molecule is characteristically prevalent in sour milk and tired muscles?

  15. Question #7 • What molecule is characteristically prevalent in sour milk and tired muscles? • Lactic Acid

  16. Question #8 • Myoglobin binds oxygen in what tissue in the human body?

  17. Question #8 • Myoglobin binds oxygen in what tissue in the human body? • Muscle

  18. Question #9 • The wavelength of yellow light is 600 nanometers. What is the wavelength in centimeters? • W. 6.0 x 10-9 • X. 6.0 x 10-7 • Y. 6.0 x 10-5 • Z. 6.0 x 10-2

  19. Question #9 • The wavelength of yellow light is 600 nanometers. What is the wavelength in centimeters? • W. 6.0 x 10-9 • X. 6.0 x 10-7 • Y. 6.0 x 10-5 • Z. 6.0 x 10-2

  20. Question #10 • Many of the groups of elements in the periodic table have acquired common names. The elements in Group IA, with the exception of hydrogen, are called what?

  21. Question #10 • Many of the groups of elements in the periodic table have acquired common names. The elements in Group IA, with the exception of hydrogen, are called what? • Alkali Metals

  22. Question #11 • How many significant figures are there in the number 0.0036?

  23. Question #11 • How many significant figures are there in the number 0.0036? • 2 (Two)

  24. Question #12 • Name the two most abundant elements in the universe.

  25. Question #12 • Name the two most abundant elements in the universe. • Hydrogen and Helium (H and He)

  26. Question #13 • Fish in an aquarium require oxygen to live, which is usually done by pumping air into the fish tank using a mechanical pump. If all other things remain constant, the most effective transfer of oxygen to water comes from: • W. small bubbles of air • X. large bubbles of air • Y. bubbling of cold air • Z. slow bubbling of air

  27. Question #13 • Fish in an aquarium require oxygen to live, which is usually done by pumping air into the fish tank using a mechanical pump. If all other things remain constant, the most effective transfer of oxygen to water comes from: • W. small bubbles of air • X. large bubbles of air • Y. bubbling of cold air • Z. slow bubbling of air

  28. Question #14 • Under which of the following conditions will iron rust: • W. in water • X. in water and oxygen • Y. in oil • Z. in oil and water

  29. Question #14 • Under which of the following conditions will iron rust: • W. in water • X. in water and oxygen • Y. in oil • Z. in oil and water

  30. Question #15 • In order to compare two different gas samples, scientists use what is called the STP. What does STP stand for?

  31. Question #15 • In order to compare two different gas samples, scientists use what is called the STP. What does STP stand for? • Standard Temperature and Pressure (0°C or 273 K and 1 ATM or 760 mm Hg)