<span>There's a trend in electronegativity. The bottom left of periodic table is the lowest (0.7) and the upper right is the highest (4.0). The most polar is the greatest difference in electronegavity.
hbr- 1~ , hi- 0.5~ ,hcl - 1.3~ , hf-1.8 so,hf is the answer</span>
Im pretty sure its h2o so like the 2nd one
Red giants produce "metals", i.e., heavier elements.
The first step is helium conversion into
<span>carbon</span>
I am looking for this answer too. Did you ever find it? I could really use the help