Please answers for 3 problems.

1. Gallium consists of two isotopes of masses 68.95 amu and 70.95 amu with abundance of 60.16% and 39.84%, respectively. What is the average atomic mass of gallium? a) 69.55amu b) 70.15amu c) 69.75amu d) 71.95amu e) 69.95amu 5. Which of the following statement describes Molecular compound the best? a) A compound that is made up of a metal and a non-metal atoms. b) A compound that is made up of a metal and a non-metal atoms with a covalent bond between them. c) A compound that is made up of two or more non-metal atoms with an ionic bond between atoms. d) A compound that is made up of two or more non-metal atoms with a covalent bond between atoms. 6. State what types of bonds exist between NO,HH, and HF. a) H-bonding, True Covalent bond and Polar covalent bond b) Ionic bond, True Covalent bond and Polar covalent bond c) Polar covalent bond, True covalent bond, and Ionic bond d) Ionic bond, true covalent bond, and true covalent bond