mixture of magnesium powder and zinc II oxide will react vigorously when heated but no reaction occurs when a mixture of Magnesium Oxide and zinc powder is heated.(i)Explain the observation made.(ii)Write the equation for the reaction between magnesium and zinc || oxide.(III)From the reaction above identify the oxidizing agen​

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next

How is an endothermic reaction identified