Classify the chemical reaction shown here: mg + h2so4 → mgso4 + h2

Single Displacement Reaction

Explanation:

Chemical reactions are broadly classified as:

1) Synthesis which involves combination of 2 or more reactants to form a single product

2) Decomposition which involves the breakdown of a complex reactant into two or more simpler products

3) Single displacement reaction which involves displacement of a more reactive element from a less reactive element in a compound

4) Double displacement involves exchange of ions between 2 salts

The given reaction is:

Mg + H2SO4 → MgSO4 + H2

Here Mg is more reactive and displaces H from H2SO4 forming MgSO4. This is an example of a single displacement reaction

neutrons are in the middle of the atom and the electrons, which are much smaller.

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.