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This week's Physical Science activities focus on balancing chemical equations through various reactions. On Monday, balance the reaction between calcium silicide and chlorine, forming calcium chloride and silicon tetrachloride. Tuesday's task involves writing a balanced equation for the reaction of potassium hydroxide with lead II nitrate. Midweek, balance the combustion of octane with oxygen to produce water and carbon dioxide. Thursday's experiment requires balancing chromium disulfide with oxygen to yield chromium(III) oxide and sulfur dioxide. Finally, on Friday, balance the synthesis of ammonia from hydrogen and nitrogen gases.
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Openers 2-3 to 2-7 Physical Science
Monday Balance the equation Ca2Si + Cl2 CaCl2 + SiCl4
Tuesday Write a balanced equation for combining solutions of Potassium Hydroxide and Lead II Nitrate.
Wednesday Balance the equation C8H18+ O2 H2O + CO2
Thursday Balance the following equation CrS2 + O2 Cr2O3 + SO2
Friday Write a balanced equation for hydrogen gas combining with nitrogen gas to form ammonia(NH3).