When heated, particles vibrate faster, thus increasing the distance between one another. The distance between these particles results in changes of state. Therefore, increased molecular motion results in expansion of an object. This works vice versa for cooling. As the vibrations slow down, the particles become closer together. This results in contraction.
1. Acetic acid (Ethanoic acid) is a colorless liquid.
2. Sodium Bicarbonate is an odorless, crystalline powder.
3. Carbon dioxide is a colorless gas.
4. Dihydrogen monoxide is colorless and odorless gas.
5. Sodium acetate is very soluble in water.
6. Calcium chloride has an exothermic reaction when dissolved in water.
7. Calcium carbonate is also an odorless powder.
8. Sodium chloride is soluble in water, and partially soluble (or insoluble) in other liquids.
Hope this helps! (:
Explanation:
electrons move arround nucleus in the orbit such as sun in suria system..
Isotopes are the atoms of the same element with same atomic number but different mass number isotopes of same element have same chemical properties due to same number of electrons atomic number of an atom is the number of electrons protons in it and mass number is the sum of protons
