An exothermic reaction occurs when the energy used to break the bonds in the reactants (the starting stuff) is less than the energy released when new bonds are made in the products (the stuff you end up with).
ApivarÂ® (active ingredient: 3.33% amitraz) is a sustained-release plastic strip designed for use in honey bee hives. Honey supers must be removed from hives before undergoing treatment wtih amitraz, and cannot be replaced until 14 days after the strips are removed.
For other uses of Varian, see Varian (disambiguation). Varian Medical Systems (VAR) of Palo Alto, California, USA, is a leading radiation oncology treatments and software maker. These medical devices include linear accelerators and software for treating cancer and other medical conditions with radiotherapy, radiosurgery, proton therapy, and brachytherapy.