posted by Amy .
1. A theory and a hypothesis are different in that:
A. you must have a theory before you can form a hypothesis.
B. a theory is developed as a result of broad agreement among scientists and a hypothesis is a much less substantiated idea.
C. a theory is much easier to disprove than a hypothesis.
D. a theory can never be disproved while a hypothesis can.
is it A
2. A covalent bond is:
A. the attraction that one atom has for another atom.
B. the attraction between two atoms, formed by the sharing of electrons.
C. formed between the positive charge of a hydrogen atom in one molecule and the negative charge of a nitrogen atom in another nearby molecule.
D. the attraction between a positive ion and a negative ion.
is it A