All matter is made of particles called atoms. An atom is smallest unit of matter. A matter can be solid, liquid or gas. When a group of atoms bond together this makes a molecule. The molecule is the base of chemical compounds that is involved in chemical reactions. A mixture of elements is what is known as compounds. Chemical reactions occur when particles react with each other and atoms in molecules get rearranged. Reactions happen either rapidly or slowly. The speed of a reaction is known as the rate of the reaction. This speed of chemical reaction depends on many factors such as temperature, particle size of reactants, and the intensity of reactants. A reactant is the substance that is used up in a chemical reaction to give product, which is the substance that is made at the end of the reaction. Besides, the energy of the molecules that determines how fast molecules are moving is known as temperature. Therefore, the rate of the reaction that happens between molecules is affected by the size of the reactant. …show more content…
In our project we mixed different sizes of tablets and water and see if there is a reaction. The tablets are solids and the water is a liquid we are trying to see what happens when they collide. When Alka-Seltzer have many compounds in them. Alka-Seltzer is a medicine that is used to treat heartburn. It is made by many ingredients, which are bicarbonate, aspirin and citric acid. When the compound sodium bicarbonate dissolve in water, it breaks apart to make sodium ion and bicarbonate ion (HCO3 − ) ions. The reason why Bicarbonate reacts to hydrogen ions it’s because of the citric acid. It reacts to citric acid is so the form carbon dioxide and water The reaction is calculated by using the following chemical