Question

A molecule of CO2 has a) 1 covalent bond b) 2covalent bond c) one double bond d) two double bonds​

Answer 1

Answer:

2 double bonds

Explanation:

carbon and oxygen are non metals meaning that they bond covalently as losing or gaining electrons will take alot of energy.Carbon has 4 outer shell electrons aka valency electrons so that means it needs 4 more electrons to gain a stable outershell(atoms bond to form a stable outsershell thats why noble gases are unreactive)so that means it shares 4 and oxygen has 6 valency electrons so therefore needs to share 2 if you draw the structure youll see that carbon shares 2 electrons with each oxygen (totally shares 4 )and each oxygen shares 2 so that means in each  intercept there are 4 electrons so 2 pairs and thats the double bond.