L 8.3.2 Test (CST): Chemical Reactions Question 8 of 20
Which two chemical equations model double-replacement reactions?
A. HC2H302 + LiOH → LiC2H302 + H20
B. CH4 + 202 - 2H2O + CO2
O C. AgNO3 + LICI – AgCl + LINO3
D. 2Na+ MgCl2 – 2NaCl + Mg

Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

Embryos of different species look very similar, which shows that the organisms share a ancestor.