Choose all of the chemical reactions which correctly show that chemical reactions must obey the law of conservation of matter. ch4 + 2o2 → co2 + h2o h2 + o2 → h2o c6h12o6 + 6o2 → 6co2 + 6h2o 2co + o2 → 2co2 4p + o2 p4o10

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.

(04.05 hc) analyze the given diagram of the carbon cycle below. part 1: which compound does c represent? part 2: name a process that could release this compound into the air. part 3: explain how the elements that form it are conserved during the carbon cycle. use complete sentences to explain your answer. justify how this compound was created from a recycling of carbon in the carbon cycle. use complete sentences to explain your answer.