a) Use the reactivity series to complete the equation. Aluminium oxide + ____________ --> ______ ______ + aluminium
b) When magnesium reacts with copper sulfate, which is an observation which you would make?
c) What is the correct symbol equation for the reaction of magnesium with copper sulphate?
d) What would you observe if Silver was added to an acid?
a) To complete the equation using the reactivity series, you need to determine which element is more reactive than aluminum. The reactivity series is a list of metals arranged in order of their reactivity, with the most reactive at the top. In this case, aluminum is less reactive than copper, zinc, iron, and hydrogen, but more reactive than silver and gold. So, to complete the equation, you could choose copper as the reactant. The balanced equation would be: Aluminium oxide + copper --> copper oxide + aluminium.
b) When magnesium reacts with copper sulfate, one observation you would make is a color change. Initially, copper sulfate is blue in color, but when magnesium is added, it displaces copper from the copper sulfate solution, forming magnesium sulfate. The blue color of copper sulfate will fade, indicating that a chemical reaction has occurred.
c) The correct symbol equation for the reaction of magnesium with copper sulfate is: Mg + CuSO4 -> MgSO4 + Cu. This equation shows that magnesium (Mg) reacts with copper sulfate (CuSO4) to form magnesium sulfate (MgSO4) and copper (Cu).
d) If silver is added to an acid, such as hydrochloric acid (HCl), you would observe a reaction taking place. Silver is less reactive than hydrogen but more reactive than copper, so it can displace hydrogen from acids. The observation you would make is the production of bubbles of hydrogen gas. This is because the silver reacts with the acid to form silver chloride and hydrogen gas.