A student places a chemical in an insulated container and measures the temperature. A second chemical is added and the container is sealed and the temperature is monitored. What is the student trying to determine?
What color changes can be observed?
How much precipitate is formed?
Is heat absorbed or released?
O How can this reaction be reversed?

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 )

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.