2 which are characteristics of matter? (Select all that apply) It hasmass
It takes up space
O is the smallest part of an element
It only has one type of atom in it

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Amedication is given at a dosage of 3.000 mg of medication per kg of body weight. if 0.1500 g of medication is given, then what was the patient's weight in pounds (lbs)? there are 453.59g in 1 lb.

Use the half-reactions of the reaction au(oh)3 + hi -> au +i2 +h2o to answer the questions