Search results
For example, H 2 O symbolizes a compound called water composed of hydrogen (H) and oxygen (O) atoms in a 2:1 ratio. Similarly, NaCl symbolizes a table salt compound composed of sodium (Na) and chlorine (Cl) atoms in a 1:1 ratio. If the symbol of a compound also represents a molecule of the compound, it is called a molecular formula.
The Sun is the major source of light for the earth. The sun is a massive ball of fire, at the centre of which nuclear fusion produces massive energy. This energy comes out as heat and light.
Define energy, distinguish types of energy, and describe the nature of energy changes that accompany chemical and physical changes; Distinguish the related properties of heat, thermal energy, and temperature; Define and distinguish specific heat and heat capacity, and describe the physical implications of both
16 kwi 2019 · (e) Chemical energy results from the particular arrangement of atoms in a chemical compound; the heat and light produced in this reaction are due to energy released during the breaking and reforming of chemical bonds.
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
Each element is given the chemical symbol of its atom. H is the symbol of the hydrogen atom O for oxygen. Chemical symbols are usually one or two letters long.Every chemical symbol starts...
Our sun is a star i.e. its light is internally produced, it does not reflect the light of any other star or body. It is the basic source of heat and light for the entire living world and the source of energy for all ecosystems. Its thermal heat can be used for passively heating buildings and water.
