Given the balanced chemical reaction: H2(g) + Cl2(e) → 2HCl(g)
What is the total number of moles of HCl(g) produced when 1.5 moles of Cl2(8) reacts completely with H2(g) ?

A) 5.0 mol
B) 6.0 mol
C) 2.0 mol
D) 3.0 mol

Iknow #2 is d. i just need to know why

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

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211