According to the law of conservation of mass (or the law of conservation of matter), matter is neither created nor destroyed in a chemical reaction or change. It means the total mass of products is equal to the total mass…
Properties of matter (or material substances) are simply characteristics by which different kinds of matter may be commonly recognized or identified. These characteristics help us differentiate or identify one substance from another. For example, a property of water is a…
Definition of Matter: Anything that has mass and occupies space (i.e. volume) is called matter. It is the things our universe is composed of and all objects in the universe follow to this definition. All the surrounding objects in the…
Chemistry is a branch or part of physical science which deals with the study of properties of matter. By matter, we mean substances we can see, feel, touch, taste, and smell. Chemistry is concerned with the physical and chemical properties…
In chemistry, molecular mass is an important property of molecules that are concerned with their physical and chemical properties. It is a measure of the total mass of all the atoms in a molecule. Understanding molecular mass is an important…
As we know that atoms of all elements are extremely small. We cannot see them either by the naked eye or even by the powerful microscope. Absolute (or actual) masses of atoms of elements are very, very small. Therefore, it…
Molecules are essential building blocks of everything around us. They are tiny particles that comprise atoms bonded together in a specific way. Molecules are the foundation of all living things and non-living things. Understanding what a molecule is and how…
In accordance with Dalton’s atomic theory, atoms of distinct elements react with each other in the simple ratios. Gay-Lussac proposed that gases react with each other in the simple ratio of their volumes, provided all gases are at the same…
In 1808, An English scientist John Dalton proposed the first scientific theory of matter. This theory is also known as Dalton’s atomic theory of matter. This atomic theory is mainly based on the laws of chemical combination. The main postulates…
The laws which deal with the composition of substances or compounds by mass or by volume are called laws of chemical combination or laws of stoichiometry. These laws are experimental laws which have been prepared by scientists based on performing…
