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2 What are six signs of a chemical change 3 State whether the items below...

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2 What are six signs of a chemical change 3 State whether the items below are physical or chemical changes Popsicle melting Sodium reacting with water and chlorine Folding paper A canister combusting A cracked glass 4 Look at the equation below Is this an endothermic or exothermic reaction 6 CO 6 H 0 sunlight C H O6 60 PS 3c Ionic and Covalent Bonds 1 When a nonmetal bonds with another nonmetal which type of bond is created 2 When a metal bonds with a nonmetal which type of bond is created 3 Which of the following is an example of an ionic bond a NaCl b H O c CH4 4 Which of the following is an example of a covalent bond a MgBr2 b AlF3 c 0 5 Electrons are shared in 6 Electrons are transferred in bonds bonds d N d Rb S PS 3d Conservation of Matter Counting Atoms and Balancing Equations 1 According to the Law of Conservation of Matter Mass the products and reactants must

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