HF and HCN are both weak acids. Ka = 3.5 x 10-4 for HF Ka = 4.9 x 10-10 for HCN What is [CN-] in a mixture of 0.50 M HF and 0.30 M HCN. A. 1.2 × 10-5 M B. 7.4 × 10-6 M C. 2.4 × 10-10 M D. 1.1 × 10-8 M E. 3.7×10-6M

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull