Explanation:
Carbon has four electrons in its outer most orbit and it can share four more electrons from other atom to complete its valency while oxygen has 6 electrons in its outermost orbit and it can either charge the electron or gain two electrons from other atom.
Therefore in , the carbon atom shares its two electrons with two electrons of each oxygen atom and forms double bond with it. Thus, total pairs of electron to be shared by the atom of the molecule is two.
C is The correct answer because when wave refraction occurs there is a change in the depth of the water.
Answer:
Amino acids
Explanation:
Proteins are made up of small units called amino acids. There are about 20 different types of amino acids occuring naturally. All amino acids contain an amino group which consists of hydrogen and nitrogen. The process of combining two amino acids form dipeptide molecule. The bond between the two amino acids is called a peptide bond.
Answer:
False
Explanation:
Because X-inactivation is random, in normal females the X chromosome inherited from the mother is active in some cells, and the X chromosome inherited from the father is active in other cells.
Explanation: Basically, air cools as it rises, which can cause water vapor in the air to condense into liquid water droplets, sometimes forming clouds and precipitation. ... Well, high pressure is associated with sinking air, and low pressure is associated with rising air.