You fill 12 trays with water and find the total mass to be 500g. What is the quickest way to figure out the mass of the water in one of the trays? Freeze the ice trays and measure the mass of only one of the ice cubes in the ice tray.

Measure the total mass of the trays, subtract the mass of the trays without water and then divide that mass by 12.

Pour the water from one of the trays into a container and measure the mass of the container and the water.

Pour the water from all of the trays onto a scale to measure the mass.

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

When determining the shape of a molecule, it is important to draw a lewis dot structure first in order to see the total number a. electrons within the moleculeb. bonding and unshared pairs around central atomc. unshared pair within the molecule( i really need it )

Can anyone answer these questions? ? i need it before 1: 00pm today