Which of the following describe chemical properties? check all that apply
helium is the lightest monatomic element.
mercury is a liquid at room temperature.
water boils at 100 degrees c
antacid tablets neutralize stomach

How many atoms of oxygen are contained in 160 grams of n2o3

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

An experimental procedure requires a 10 ml of acid to be dissolved