1) Does exothermic mean that energy is taken in to the system or released to the surroundings?  a) Taken in to the system b) Released to the surroundings 2) What is the opposite of exothermic? a) enthalpy b) enthraperthic c) endoskeleton d) endinious e) endothermic f) poilikothermic 3) Ice and salt react together (temperature decreases) Is it exothermic or endothermic? a) Endothermic b) Exothermic 4) Any combustion (burning in oxygen) reaction. Is it exothermic or endothermic? a) Exothermic b) Endothermic 5) Ice melting in a summer drink. Exothermic or endothermic? a) Endothermic b) Exothermic 6) An acid neutralising a base. Exothermic or endothermic? a) Endothermic b) Exothermic 7) What word means "the chemicals that are used up in the reaction"? a) Products b) Reactants c) Molecule d) Elements e) Ingredients f) Acids 8) What word means "the chemicals that are made in the reaction"? a) Products b) Reactants c) Molecules d) Elements e) Ingredients f) Acids 9) Is this reaction exothermic or endothermic? a) Exothermic b) Endothermic 10) Is this reaction exothermic or endothermic? a) Exothermic b) Endothermic 11) Is this reaction exothermic or endothermic? a) Exothermic b) Endothermic

Exothermic and Endothermic reactions

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