Hydrogen. Covalent bonds occur within each linear strand and strongly bond the bases, sugars, and phosphate groups (both within each component and between components). Hydrogen bonds occur between the two strands and involve a base from one strand with a base from the second in complementary pairing.
<span>At the atomic scale, the kinetic energy of atoms and molecules is sometimes referred to as heat energy. Kinetic energy is also related to the concept of temperature. Temperature is defined as the measure of the average speed of atoms and molecules. The higher the temperature, the faster these particles of matter move.</span>
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Answer : <em>4) The total number of electrons increases down the group, and this increases the strength of the intermolecular forces.</em>
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Answer:
45.8.
Explanation:
The relative molecular mass is 0.60 * 45 + 0.40 * 47
= 45.8.
