Which of the following statements are correct about the chemical reaction?
h2 + o2 -> h2o2
versus
2 h2 + o2 -> 2 h2o?
they are both balanced chemical equations.
the two reactions are equivalent.
the laws of thermodynamics apply to both.
conservation of mass applies to both.

hope this

explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)