If the rate constant for a reaction triples when the temperature rises from 300. K to 310. K, what is the activation energy of the reaction

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

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 )

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?