CHEMISTRY SEMESTER B FINAL PAPER 2026
FULL QUESTIONS SOLUTIONS GUARANTEED
PASS
◉ % composition formula. Answer: (mass of element/ mass of
compound) x 100
◉ stoichiometry. Answer: term derived from Greek words stoicheion
(element) and metron (measure); a quantitative means of examining
the relationships b/t reactants and products in a chemical reaction
◉ mole ratio. Answer: ratio of moles of reactant required and
product produced, in which coefficients in balanced equations
represent
◉ mole ratio. Answer: tool chemists use to move b/t amounts of diff
substances in a chemical reaction
◉ limiting reactant. Answer: A reactant that is totally consumed
during a chemical reaction, limits the extent of the reaction, and
determines the amount of product.
, ◉ excess reactant. Answer: the reactant that is not completely used
up in a chemical reaction
◉ % yield. Answer: amount of product that may be produced by a
reaction under specified conditions
◉ actual yield. Answer: the amount of product obtained from a
reaction
◉ % yield formula. Answer: actual yield/theoretical yield x 100
◉ properties that make water a unique substance. Answer: 1.
surface tension and capillary action
2. hydrogen bonding
3. high heat capacity
4. density of a liquid is more than of a solid
5. ability to dissolve most substances
◉ capillary action. Answer: the attraction of the surface of a liquid to
the surface of a solid; it cannot only stick to itself but also to other
substances
◉ adhesive force. Answer: ability of a water molecule to be attracted
to a molecule of a diff substance
FULL QUESTIONS SOLUTIONS GUARANTEED
PASS
◉ % composition formula. Answer: (mass of element/ mass of
compound) x 100
◉ stoichiometry. Answer: term derived from Greek words stoicheion
(element) and metron (measure); a quantitative means of examining
the relationships b/t reactants and products in a chemical reaction
◉ mole ratio. Answer: ratio of moles of reactant required and
product produced, in which coefficients in balanced equations
represent
◉ mole ratio. Answer: tool chemists use to move b/t amounts of diff
substances in a chemical reaction
◉ limiting reactant. Answer: A reactant that is totally consumed
during a chemical reaction, limits the extent of the reaction, and
determines the amount of product.
, ◉ excess reactant. Answer: the reactant that is not completely used
up in a chemical reaction
◉ % yield. Answer: amount of product that may be produced by a
reaction under specified conditions
◉ actual yield. Answer: the amount of product obtained from a
reaction
◉ % yield formula. Answer: actual yield/theoretical yield x 100
◉ properties that make water a unique substance. Answer: 1.
surface tension and capillary action
2. hydrogen bonding
3. high heat capacity
4. density of a liquid is more than of a solid
5. ability to dissolve most substances
◉ capillary action. Answer: the attraction of the surface of a liquid to
the surface of a solid; it cannot only stick to itself but also to other
substances
◉ adhesive force. Answer: ability of a water molecule to be attracted
to a molecule of a diff substance
