Question: SNC2D: UNIT 2 CHEMISTRY TEST ONTARIO VIRTUAL SCHOOL 7. Explain why it is necessary to balance chemical equations. What information does a balanced equation provide?

SNC2D: UNIT 2 CHEMISTRY TEST ONTARIO VIRTUAL SCHOOL 7. Explain why it is necessary to balance chemical equations. What information does a balanced equation provide? (3 marks) Part D: Application (15 marks) 8. The walls of the stomach usually secrete HCI to aid in the breakdown and digestion of food. However, at times when there is too much stomach acid, this can lead to symptoms such as heartburn, upset stomach, and indigestion. Medication such as Milk of Magnesia containing MgOH2 helps to relieve such symptoms. Explain in detail the science behind how this medication alleviates the stomach's high acidity (6 marks). 9. What is the law of conservation of mass, and how does it apply to balancing chemical equations? (4 marks)

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