Chemical Reactions and Energy Transformations Quiz

Exothermic Reaction = A chemical reaction that releases energy by light or heat Chemical Reaction = A process in which one or more substances, known as reactants, are converted to one or more different substances, known as products Photosynthesis = The process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar Endothermic reaction = Any chemical reaction that absorbs heat from its environment

Chemical Equation = A way to represent a chemical reaction using element symbols Compound = A group of atoms of different elements joined together by sharing or transferring electrons Molecule = Two or more atoms bind together Chemical formula = A shorthand notation that uses chemical symbols and numbers as subscripts to represent the type and number of atoms that are present in the smallest unit of the substance

Exothermic Reaction = Releases energy by light or heat Endothermic reaction = Absorbs heat from its environment Photosynthesis = Uses sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar Chemical Reaction = Converts reactants to products

<p>Subscripts = A number written below and to the right of a chemical symbol Molecule = Two or more atoms bind together Compound = A group of atoms of different elements joined together Chemical Reaction = A process that converts one or more substances to different substances</p> Signup and view all the answers

<p>Chemical formula = Uses chemical symbols and numbers as subscripts to represent the type and number of atoms in the smallest unit of a substance Photosynthesis = A process by which plants create oxygen and energy in the form of sugar Exothermic Reaction = A chemical reaction that releases energy Compound = A group of atoms of different elements joined together</p> Signup and view all the answers