21. Compare and contrast the properties of acids and bases. Include two similarities and two differences.

Alarge marble is dropped in a graduated cylinder with 35ml of water in it. the water level increases to 49ml. what is the volume of the marble

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa