Chemistry, 14.04.2021 20:20 gleatons429
Which of these are vestigial structures?
A. the sharp spines of a cactus
B. the wings of a butterfly
C. the hip bones found in some spees of snake
D. the thick fur and layer of fat of some mammals in cold climates
Answers: 3
Chemistry, 22.06.2019 04:20
Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.
Answers: 1
Chemistry, 22.06.2019 12:30
Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
Answers: 2
Which of these are vestigial structures?
A. the sharp spines of a cactus
B. the wings of a bu...
B. the wings of a bu...
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