9. AgBr can be made with the reaction below. If a chemist starts with 45.0 6 points grams of AgNO,, how many grams of CaBr must be added to use up all of
the AgNO,? Hint: convert grams to moles and moles to grams *
2AgNO3 + CaBr2 →AgBr +CaN206
O A. 0.265 grams
B. 22.5 grams
C. 26.6 grams
D. 199.9 grams

On a distance vs time graph the line of an object at rest is a

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

There are main groups in the modern periodic table of elements