Chemical Reactions and Equations Test - 17

Nitrogen or helium can be used for storage of fresh sample of oil for long time. Helium and Nitrogen both the gases provide inert atmosphere. Both Nitrogen and helium are non-reactive gases.

Nitrogen gas that can be used for storage of fresh sample of chips for a long time, Potato chip bags are not full of air, but of nitrogen gas. This is done to prevent the chips from oxidizing, which is part of what makes them go stale.

A double displacement reaction, also known as a double replacement reaction or metathesis, is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.

An equation having an equal number of atoms of each element on both the sides is called a balanced chemical equation. According to the Law of conservation of mass, total mass of the elements present in the reactants must be equal to the total mass of the elements present in products.

An oxidizing agent, or oxidant, gains electrons and is reduced in a chemical reaction. Also known as the electron acceptor, the oxidizing agent is normally in one of its higher possible oxidation states because it will gain electrons and be reduced.

Examples of Oxidizing Agents:-Hydrogen peroxide, ozone, oxygen, potassium nitrate, and nitric acid are all oxidizing agents. All of the halogens are oxidizing agents (e.g., chlorine, bromine, fluorine).

Oxidation primarily occurs with unsaturated fats by a free radical-mediated process. These chemical processes can generate highly reactive molecules in rancid foods and oils, which are responsible for producing unpleasant and noxious odours and flavours.

Redox reactions are the Oxidation is the loss of electrons by a reactant. When a metal element is reacting to form a compound then it is being oxidised. For example:- The metal atoms are losing electrons to form an ion.

When magnesium burns, it is actually reacting with oxygen in the air and not with fire. Fire is what we call the heat and light produced when things burn. Magnesium reacts with oxygen to make a compound called magnesium oxide.

Magnesium is essential for well-being, but too much can cause problems, including digestive issues, lethargy, and an irregular heartbeat.

The reaction in which a substance gains oxygen or loses hydrogen is called an oxidation reaction. For example, when sulphur (S) is heated in the presence of air, it gets oxidised to form sulphur oxide (SO).

A double displacement reaction, also known as a double replacement reaction or metathesis, is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.

According to the Law of conservation of mass, total mass of the elements present in the reactants must be equal to the total mass of the elements present in products.

All chemical changes are irreversible changes. Once the chemical properties of a substance are changed, it becomes another substance.

Physical changes may or may not be reversible changes. Like, turning of water into ice is an example of reversible changes but growth in height is an irreversible change.