Select the characteristics of a hydrogen bond:

a an attraction between polar molecules
b a gravitational force
c intermolecular force between hydrogen and oxygen, fluorine, or nitrogen
d hydrogen attracted to weakly positive atoms

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons

Why is the bottom layer of a trophic pyrimid the

Which structure is a valid representation of a hydrocarbon molecule?