How many electrons does a bromine (br) atom have? (given information)atomic number : 35neutrons: 45charge; -1

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.