Answer:
products are copper and aluminium chloride
reactants are aluminium and copper chloride
Explanation:
products are formed at the end of a reaction
reactants are what's reacting to form the products ie the things at the start of the equation
1. Nucleic
2. Protein
3. Carbohydrates
4. Lipids
To find an element on the Periodic Table given its numerical information, look at the number of protons/electrons--this is the atomic number. Find the atomic number on the periodic table, and you will find your element.
In this case, we are looking for atomic number 38, which happens to be Strontium