1 2. NaHCO3 reacts with both HCL (acid) and NaOH (alkali) why? 3. Name a process for converting mercuric oxide to the liquid metal. 1 4. Alloy are usually harder than the parent metal. For example, steel is harder than pure iron and duralumin is much harder than pure

1 2. NaHCO3 reacts with both HCL (acid) and NaOH (alkali) why? 3. Name

1.	1 2. NaHCO3 reacts with both HCL (acid) and NaOH (alkali) why? 3. Name a process for converting mercuric oxide to the liquid metal. 1 4. Alloy are usually harder than the parent metal. For example, steel is harder than pure iron and duralumin is much harder than pure
Answer» Alloys contain ATOMS of DIFFERENT sizes. These different sizes distort the regular arrangements of atoms. This makes it more difficult for the layers to slide over each other, so alloys are HARDER than the PURE METAL