CW9: ENDOTHERMIC & EXOTHERMIC Reactions

List 3 things you learnt about exothermic and endothermic reactionswrite down 2 things you would like to know more aboutlist 1 thing you did not understand Which samples are exothermic and which samples are endothermic? ENDOTHERMIC PHOTOSYNTHESIS MELTING ICE BAKING A CAKE HEAT ENTERS THE SYSTEM COOKING AN EGG LIQUID TO GAS EXOTHERMIC MAKING ICE THE FLAME OF A CANDLE HEAT LEAVES THE SYSTEM CAMPFIRE GAS TO A LIQUID NUCLEAR EXPLOSION RUSTING OF IRON What type of chemical reaction absorbs energy and requires energy for the reaction to occur? Endothermic Exothermic What type of reaction releases energy and does not require initial energy to occur? Endothermic Exothermic 4. Any type of reaction that involves burning (combustion) can be classified as which of the following types of reactions? Endothermic Exothermic Two different chemical reactions take place in two separate test tubes. Test Tube A becomes warm and test tube B becomes cold. What can be concluded about the two reactions? Reaction in test tube A is endothermic while that in test tube B is exothermic. Reaction in test tube A is exothermic while that in test tube B is endothermic. Paula and her friends lit a camp-fire at night to keep themselves warm. Which of the following correctly describes how the camp-fire helped them keep warm? Lighting the camp-fire was an exothermic reaction which absorbed heat. Lighting the camp-fire was an exothermic reaction which released heat. The effect on the surroundings due to two different chemical reactions is shown below.Which of the following conclusions is correct based on the information provided? Reaction A is endothermic while reaction B is exothermic. Reaction A is exothermic while reaction B is endothermic. Ice Cream melting on a hot sunny day. Endothermic Exothermic Icicles forming in the winter Exothermic Endothermic Determine which actions are losing heat. Are they endothermic or exothermic? REACTION HEAT LEAVING ENDOTHERMICor EXOTHERMIC? The fire produced from burning wood leaving exothermic water freezing into ice leaving exothermic cold packs becoming cold when activated entering endothermic ice melting to become a liquid entering endothermic Liquid becoming a gas entering endothermic frost on a windshield on a cold morning leaving exothermic Is the following reaction endothermic or exothermic? (Hint: Look at the thermometer) Write the correct reaction in the tag provided. Watch your spelling!!! Exothermic Is the following reaction endothermic or exothermic? (Hint: Look at the thermometer) Write the correct reaction in the tag provided. Watch your spelling!!! Endothermic Does this graph indicate an exothermic reaction or an endothermic reaction? Fill in the tag with the correct answer. Exothermic Does this graph indicate an exothermic reaction or an endothermic reaction? Fill in the tag with the correct answer. Endothermic