What energy transformation occurs in the chameleon as it quickly launches its tongue to
catch an insect?

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

the answer is a and have a great day

a electronegativity decreases beacuse the size of nucleus is bigger.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;