Determine the type of chemical reaction each of the following examples fit into: Mn (s) 2HBr (aq) ---> MgBr2 (aq) H2 (g)

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

Maya wrote if you step to describe how carbon circulates between the atmosphere and living organisms