Nacl + agno3 —> agcl + nano3 how much agno3 is consumed during the reaction with 78 g of nacl?

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

Why are pipes bursting in the in extremely cold weather?

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?