Chemistry, 13.11.2020 04:40, bigbrogamer
this is the periodic table entry for iron. the atomic number for iron is __? the number of electrons in a neutral iron atom is __?
Answers: 3
Chemistry, 21.06.2019 22:30, stefaniethibodeaux
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
Answers: 1
Chemistry, 22.06.2019 16:30, Eddie997
For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.
Answers: 2
Chemistry, 22.06.2019 16:30, joshua1255
Find the number of moles of argon in 364g of argon.
Answers: 2
this is the periodic table entry for iron. the atomic number for iron is __? the number of electrons...
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