Answer: Hydrogen that is not used in balloons because hydrogen burns very easily.
pls mark brainliest
Answer:
nonpolar covalent bond: A covalent bond in which the bonding electrons are shared equally between the two atoms. polar covalent bond: A covalent bond in which the atoms have an unequal attraction for electrons and so the sharing is unequal.
Answer:
your ans is battery emf v+1r
