Astudent needs to determine the volume occupied by a gas in a 125 ml flask using the experimental setup described in the procedure. the student measures the volume of the flask to be 159 ml to the top of the flask. the student measures the volume of the flask with a stopper in it to be 142 ml. the student performs the experiment by reacting the strip of magnesium with 5 ml of hcl solution. what is the volume of the flask occupied by the hydrogen gas?

Fugu, also known as puffer fish, is a sushi delicacy that can also be lethal. puffer fish contain a powerful toxin that can kill an adult a few hours after ingestion. sushi chefs who prepare fugu must be specially trained because any contamination of the toxin-free areas of the fish can be deadly. recently this toxin has been put to good use, as scientists have discovered that a purified form of it can treat severe pain in cancer patients. this recent scientific discovery would fall under which area of chemistry? applied biochemistry pure organic chemistry pure physical chemistry applied inorganic chemistry

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

Why is permeable soil best for plants that need a lot of drainage?