4HCl(g) + Si (s) ⇌ SiCl4 (l) + 2H2 (g) would be classified as a(n):

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.

What is the mass of phosphorous in a 51-kg person