The answer is gas only.
hope this helps!
Driving cars gives off gases that trap heat in the atmosphere
Polar covalent bond- a bond where atoms are unevenly shared due to a larger difference in electronegativity of the bonded elements.
Non-polar covalent bond- These are bonds between elements with a low difference in electronegativity. Electrons are shared equally in these bonds between the elements.
Ionic bonds- have such large difference in electronegativity that they take/give electrons to the element they are bonded to. They do not share electrons at all. Bonds between a non-metal and a metal.
Answer:molecule of a compound
Explanation:
If the number of valence electron is one than it will be placed in group IA. elements of group IIA will have two valence electrons and so on....
