I want to know more about this please I need help now

One might be whether or not it reacts to a magnet? But other metals might also react. Silver doesn't tho to the average magnet. And the second should be by using a chemical solution to check what feedback it gives. Or maybe test the melting point of it?

Explanation: Here are a few measurements that can help us decide whether the sample is iron:

Density

Melting point (1,538C)

Hardness

Appearance (soft and malleable)

where is the following

explanation:

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.