Fill in the blanks in the following reactions: Al+3(aq) + → Al

Pb+2(aq) + 2e-s →

Br2 + → 2Br-1

Fe+3 + → Fe+2

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

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

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?