<p> Name ______</p><p>“What’s The Truth About Chemical Formulas and Equations? PART I Directions: The statements about compounds and equations below are all false. Change each statement to make it true by writing the correct word ABOVE the italicized word or phrase.</p><p>1). A chemical equation is a combination of chemical symbols and numbers to represent a substance. </p><p>2). A coefficient is a number written below and to the right of a chemical symbol in a formula.</p><p>3). If there is no subscript beside a symbol, only two atoms of that element are present.</p><p>4). A chemical formula uses chemical symbols and formulas as a shortcut to describe a chemical reaction.</p><p>5). The starting materials in a chemical reaction are the products.</p><p>6). The substances formed from a reaction are the subscripts.</p><p>7). A minus sign separates the formulas of two or more reactants or products from one another.</p><p>8). The arrow, also called the stop sign, separates the formulas of the reactants from the formulas of the products.</p><p>9). An equation that has the wrong chemical symbol or formula will describe the reaction correctly..</p><p>10). Atoms are always lost or gained in a chemical reaction; they are just rearranged..</p><p>11). In a chemical reaction, only half of the atoms in the reactants becomes part of the products. </p><p>12). The law of conservation of mass is also known as the law of conservation of energy.</p><p>13). The law of conservation of mass states that mass is created and destroyed in ordinary physical and chemical changes.</p><p>14). This law means that a chemical equation must show the same numbers, but not the same kinds, of atoms on both sides of the arrows.</p><p>PART II 15). Write the chemical equation that forms carbon dioxide (look on page 394). Label the reactants, plus sign, chemical symbol, formulas, yield sign, and product.</p>