Answer:
i would say A-B
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Answer:
B. flourine
Flourine is the 9th element in the periodic table
Answer:
Carbon dioxide (chemical formula CO
2) is an acidic colourless gas with a density about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms.
In CO2, the Carbon atom is in the central position as it is the least electronegative atom in the molecule. Two Oxygen atoms are located on the terminals where both these atoms share electrons and form bonds with the central Carbon atom.
Lewis structure of CO2 given in the attached image:
Answer:
B.
Explanation:
Because when a pistol is fired, chemical changes happen to light the gunpowder or whatever substance to create the noise or effect.
And multiply by coefficients if there are any