20 pts. hydrogen and oxygen react to form water. a. write the complete balanced equation. b. if 4 moles of hydrogen react with 4 moles of oxygen which of these is the limiting reagent? show work or explain how you know. c. what is the maximum amount of water (in grams) that can be produced given 4 moles of hydrogen and 4 moles of oxygen? show work.

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

The image shows a process that releases nuclear energy which statement best identifies the process shown the process must be fusion because energy is released the process must be fusion because of have your nucleus formed a smaller nuclei the process must be fission because a large nucleus breaks into smaller nuclei the process must be fission because neutrons are formed