Geography

Grade & Section:Score:Date:Learning Task #1 Chemical ReactionDirections: Choose the letter of the correct answer and write it in your answer sheet.1. A Chemists shorthand way of representing chemical reaction.A. chemical property B. FormulaC. SymbolD. Equation2. When acid and base react with each other, it produced water andA. SaltC. Fire D. Smoke3. A process in which one or more substances are converted to one or more differentsubstances is called chemical?B. Carbon dioxideA. FormulaC. ReactionB. EquationD. SymbolAny substance that is present at the start of chemical reaction.A. Product B. ReactantC. SymbolD. Arrow sign4.5. The arrow sign in the chemical equation is read as C. will formedA. added to B. combined withD. creation of precipitate6. A number written in the lower right side of the chemical formula, shows the number of atoms of each type in the molecules.A. coefficientC. subscriptB. superscript D. parenthesis7. State that the total mass of the reactant must be equal to the total mass in the product.A. Law of gravity B. Law of reflectionC. Law of interaction D. Law of conservation of mass8. A numerical number attached in front of the chemical formula, denotes the number ofmolecules or mole in a compound.A. coefficient B. subscriptC. superscriptD. molecules 9. A method used to balance out the number of each element in both side of theequation.A. Redox reactionC. Inspection methodB. Valence numberD. None of the above10. It is used to form subgroups of atoms within a molecule.A. coefficientB. subscriptC. superscript D. parenthesis