https://www.deped.gov.ph/wp-content/uploads/2019/01/General-Chemistry-1-and-2.pdf General Chemistry GenChem STEM Science, Technology, Engineering, and Mathematics K to 12 Senior High School STEM Specialized Subject – General Chemistry 1 and 2 Quarter 1 – General Chemistry 1 Matter and Its Properties Measurements Atoms, Molecules and Ions Stoichiometry Percent Composition and Chemical Formulas Chemical reactions and chemical equations Mass Relationships in Chemical Reactions Gases Dalton’s Law of partial pressures Gas stoichiometry Kinetic molecular theory of gases Quarter 2 – General Chemistry 1 Electronic Structure of Atoms Electronic Structure and Periodicity Chemical Bonding Organic compounds Quarter 3 – General Chemistry 2 Intermolecular Forces and Liquids and Solids Physical Properties of Solutions Thermochemistry Chemical Kinetics Quarter 4 – General Chemistry 2 Chemical Thermodynamics Chemical Equilibrium Acid-Base Equilibria and Salt Equilibria Electrochemistry

1. Quarter I General Chemistry 1
Matter and Its Properties
STEM_GC11MPIa-b-(1to12)
Multiple-Choice Test
Choose the letter of the correct answer. Write your answer on the space provided
before each number.
___1. Which technique is used to separate heterogeneous mixtures?
A. Filtration
B. Distillation
C. Electricity
D. chromatography
___2. Which of the following is a chemical reaction?
A. melting of lead
B. dissolving sugar in water
C. rusting of iron
D. crushing of stone
___3. Pick the chemical change that occurs when a match is held under a piece
of metal.
A. The match burns.
B. The temperature of the metal rises.
C. The volume of the metal increases.
D. The match decreases in length.
___4. Choose the correct words for the spaces.
Two samples of a given substance should have identical _____________
properties, but are likely to have different ___________ properties.
A. volume, mass
B. volume, mass
C. extensive, intensive
D. intensive, extensive
___5. Which of the following processes is an irreversible physical change?
A. cracking an egg
B. boiling of a liquid
C. freezing of a liquid
D. burning of wood

2. Quarter I General Chemistry 1
Matter and Its Properties
STEM_GC11MPIa-b-(1to12)
Multiple-Choice Test
___6. During any chemical change, the mass of the products is always
A. equal to the mass of the reactants.
B. always greater than the mass of the reactants.
C. always less than the mass of the reactants.
D. not related to the mass of the reactants.
___7. Which of the following is NOT a possible clue that a chemical change is
taking place?
A. a change of state
B. a change in color
C. production of a gas
D. formation of a precipitate
___8. Which of the following phrases describes a mixture?
A. composition vary
B. composition may vary
C. components cannot be separated using their physical properties
D. always contains a single phase
___9. Which of the following is NOT a substance?
A. nitrogen
B. stainless steel
C. iron
D. sucrose
___10. Which one of the following is a reversible physical change?
A. burning coal
B. boiling water
C. using baking soda to make bread rise
D. chopping onions

3. QuarterIGeneralChemistry1
MatterandItsProperties
STEM_GC11MPIa-b-(1to12)
Multiple-ChoiceTest
CORRECTANSWERS:
1.Whichtechniqueisusedtoseparateheterogeneousmixtures?
CORRECT:filtration
2.Whichofthefollowingisachemicalreaction?
CORRECT:rustingofiron
3.Pickthechemicalchangethatoccurswhenamatchisheldunderapieceof
metal.
CORRECT:Thematchburns.
4.Choosethecorrectwordsforthespaces.Twosamplesofagivensubstance
shouldhaveidentical_____________properties,butarelikelytohave
different___________properties.
CORRECT:intensive,extensive
5.Whichofthefollowingprocessesisanirreversiblephysicalchange?
CORRECT:crackinganegg
6.Duringanychemicalchange,themassoftheproductsis
CORRECT:alwaysequaltothemassofthereactants.
7.WhichofthefollowingisNOTapossiblecluethatachemicalchangeis
takingplace?
CORRECT:achangeofstate
8.Whichofthefollowingphrasesdescribesamixture?
CORRECT:compositionmayvary
9.WhichofthefollowingisNOTasubstance?
CORRECT:stainlesssteel
10.Whichoneofthefollowingisareversiblephysicalchange?
CORRECT:boilingwater