Which of the five types does this reaction represent? 2 KCl3 (aq)> 2 KCl(aq) + 3 O2 (g)
combustion
double displacement
synthesis
decomposition
single displacement

There are main groups in the modern periodic table of elements

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

What are the major types of a chemical compound