Ipt Hydrogen and oxygen react to produce water. Which of the following is the correctly balanced chemical equation for this reaction?
A. H + O2 + H2O
B. 2H2 + O2 + 2H2O
O c. H, + O2 + H 02
OD. 2H, + 202 + 4H, O

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Using the periodic table, complete the table to describe each atom. type in your answers

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?