Answer:
Heterogenous
Explanation:
Mud is a mixture of water and soil
AN element is composed from atoms with the same number of protons,
A compound contain two or more different elements
None of these; the most electronegative element is fluorine because an atom of fluorine needs an additional electron to join it's outer membrane, so the atom can achieve stability.
a flourine atom on its own is always a negative ion.
Johnny should have thrown away the unused chemicals because they still could have mixed with the other chemicals and it could cause a reaction.
Answer:
hope this will help you......
