1) A equation consist both______ and ____ a) reactant b) product c) Both d) None 2) Which of the following show the direction of reaction a) reactant b) Arrow c) Product d) All of these 3) A equation is balanced when_____ a) no. of atom same on both side b) no. of atom different on both side c) both d) None 4) Hydrogen + Oxygen makes a) carbondioxide b) water c) carbon monoxide d) nitrogen

chemical equations and reaction

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