Punjab Chemistry Online 9th Class Test Lesson 8 Chemical Reactivity

Reactivity in chemistry refers to the chemical reactions of a single substance, the chemical reactions of two or more substances that interact with each other, the systematic study of sets of reactions of these two kinds, methodology that applies to the study of reactivity of chemicals is called the Chemical Reactivity. Chemical Reactivity Lesson 8 Chemistry Online Test 9th Below This exam must be completed in 30 minutes. Time left: 1800 123456789101112  Loading… ... Continue Reading →

Punjab Chemistry Online 9th Class Test Lesson 7 Electrochemistry

The branch of chemistry that deals with the relations between electrical and chemical phenomena. Electrochemistry is a branch of chemistry dealing with chemical reactions that involve electrical currents and potentials. studies chemical reactions which take place in a solution at the interface of an electron conductor Electrochemistry Lesson 7 Chemistry Online Test 9th Below Please go to Punjab Chemistry Online 9th Class Test Lesson 7 Electrochemistry to view this test Continue Reading →

Punjab Chemistry Online 9th Class Test Lesson 6 Solutions

In chemistry, a solution is a homogeneous mixture composed of only one phase. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent. The solvent does the dissolving. The solution more or less takes on the characteristics of the solvent including its phase, and the solvent is commonly the major fraction of the mixture. Solutions Lesson 6 Chemistry Online Test 9th Below Please go to Punjab Chemistry Online 9th Class Test Lesson 6 Solutions to view this test Continue Reading →

Punjab Chemistry Online 9th Class Test Lesson 5 Physical States of Matter

States of matter in physics are the distinct forms that different phases of matter take on. Four states of matter are observable in everyday life: solid, liquid, gas, and plasma. Diffusion is defined as spontaneous mixing up of molecules by random motion and collisions to form a homogeneous mixture. Historically, the distinction is made based on qualitative differences in properties of Matter. Physical States of Matter Lesson 5 Chemistry Online Test 9th Below Please go to Punjab Chemistry Online ... Continue Reading →

Punjab Chemistry Online 9th Class Test Lesson 4 Structure of Molecules

A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. The definition of the molecule has evolved as knowledge of the structure of molecules has increased. Earlier definitions were less precise, defining molecules. The three dimensional shape or configuration of a molecule is an important characteristic. Structure of Molecules Lesson 4 Chemistry Online Test 9th Below Please go to Punjab Chemistry Online 9th Class ... Continue Reading →
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