HINAWANAN NATIONAL HIGH SCHOOL
Hinawanan, Loay, Bohol, Philippines
FOURTH PERIODICAL in TEST SCIENCE 10
NAME: ________________________________ YEAR LEVEL & SECTION: _____________ Score:______
DIRECTIONS: Read and analyze each test item carefully. Avoid erasures and superimposition. Write your answers in the
space provided for.
Identify the law of gases that explains the following:
A. Boyle’s Law
______1. Law that explains the mechanism of gas compressor
B. Charle’s Law
______2. Gas law that explains the explosion of the heated aerosol container
C. Combined Gas Law
______3. Law that explains the relationship among the volume, pressure,
D. Ideal Gas Law
temperature, and the number of moles of gases
E. Gay Lussac’s Law
______4. Law that explains gas pressure – temperature relationship at constant volume
F. Avogadro’s Hypothesis
______5. It suggests that the volume of gases is directly proportional to the number of mole
______6. Derived from Boyle’s and Charles’ law
______7. It states that volume of gas is directly proportional to its temperature
______8. Describes the relationship between the volume and pressure of gases at constant temperature
______9. Law that considers all measurable factors that affect behavior of gases
Choose the letter of the correct answer.
_____10. Which is NOT a major source of protein?
a. fish
b. egg
c. milk
d. vegetable
c. olive oil
d. cheese
_____11. Which of the following contains the most lipids?
a. banana
b. champorado
_____12. Which of the following is a correct pair?
a. glucose : disaccharide
b. sucrose : monosaccharide
c. starch : polysaccharide
d. triglycerides : polysaccharide
_____13. Which is the correct pair of an example of protein and its function?
a.
b.
c.
d.
enzymes: speed up reactions in the body ad eventually used up in the process
collagen: provides strength and flexibility to connective tissues
actin and myosin: supplies amino acids to the body of mammals
hemoglobin: helps regulate blood sugar level
_____14. Nutritional chemists have found that burning 1 gram of fat releases twice the amount of heat energy as burning
1 gram of starch. Based on this information, which type of biomolecule would cause a person to gain more weight?
a. carbohydrate
b. fat
c. proteins
d. nucleic acid
Write TRUE if the statement is correct and FALSE if not, and change the underlined word/s to make the
statement correct.
___________________________15. Generally, the higher the concentration of the reacting substances, the faster is the
reaction.
___________________________16. At lower temperature, chemical reactions occur at slower rates.
___________________________17. The bigger the surface area of the reactants, the faster the rate of reaction.
___________________________18. Catalysts increase the rate of reaction by providing a reaction pathway with
a higher activation energy.
___________________________19. The minimum energy required to start a reaction is called bond energy.
___________________________20. Polysaccharide is formed by combining two monosaccharides chemically.
___________________________21. Lipids are water insoluble molecules because they are hydrophobic.
___________________________12. Both DNA and RNA are polymers made of nucleotides.
___________________________23. Enzymes, biological catalysts are carbohydrates.
___________________________24. Starch is the chief storage form of carbohydrates in animals.
Tell whether the given chemical equation is BALANCED OR UNBALANCED. Write the word BALANCED if it the
number of atoms in each element of the equation is already equal, and if not give the balance form of the
chemical equation.
_____________________________________25.
_____________________________________26.
_____________________________________27.
_____________________________________28.
_____________________________________29.
_____________________________________30.
_____________________________________31.
_____________________________________32.
_____________________________________33.
_____________________________________34.
Solve the following problems:
35. The inflated balloon that slipped from the hand of Renn has a volume of 0.50 mL at sea level (1 atm) and it reached
a height of approximately 8km where the atmospheric pressure is approximately 0.33 atm. Assuming that the
temperature is constant, compute for the final volume of the balloon.
36. An inflated balloon with a volume of 0.75 L at 30 degrees was placed inside the freezer where the temperature is
-10 degrees Celsius. Find out what will happen to the volume of the balloon if the pressure remains constant.
Support your answer with computation.
37. The pressure of a nitrogen gas inside a rigid tank is 1.5 atm at 30° C. What will be the resulting pressure if the
tank is cooled to 0° C?
38. The oxygen tank manufacturer used to produce 5L of oxygen at 2000psi at 25°C. Statistics suggests that the tank
at 1500psi is more marketable. What temperature requirement is needed to produce a 3L oxygen tank at 1500psi?
39. What will be the final volume of a 5L He gas which contain 0.965 mole at 30° C and 1atm, if the amount of this
gas is increased to 1.80 moles provided that the temperature and pressure remains unchanged?
40. What is the volume of a container that can hold 0.50 mole of gas at 25° C and at 1.25 atm?
GOOD LUCK !!!!
Science is a powerful instrument. How it used whether it is a
blessing or a curse to mankind, depends on mankind and not on the
____________________________
Name of Parent/Guardian & Signature
instrument. A knife is useful but it can also kill. ---Albert Einstein