Which diagram below gives the best representation of an alloy?
Suggest a property of brass that explains why ship propellers are made from it instead of pure copper or pure zinc.
Complete the word equation for the reaction shown.
One of the substances in this equation is a pollutant gas that leads to acid rain. Identify the pollutant gas and state one common source of it.
Zinc oxide is reduced when it is heated with carbon. $\text{ZnO} + \text{C} \rightarrow \text{Zn} + \text{CO}$. In what way does this equation show that zinc oxide is reduced?
Fill in the box with the sign for a reversible reaction: $\text{FeSO}_4\cdot7\text{H}_2\text{O} \; ? \; \text{FeSO}_4 + 7\text{H}_2\text{O}$.
Use the equation to suggest how white iron(II) sulfate can be turned into green iron(II) sulfate.