Answer:
It's a duplication........
The number indicates the number of atoms of each element in a molecule of a substance is the script number to the right of the element indicates the number of atoms. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
Answer:
Atoms in reactants are equal to atoms in products. so it represents law of conservation of energy
Answer:
1) Pentane 2) 2-Pentene
Explanation:
Both molecules have five carbons so you will add thhe prefix "pent-" and the first molecule only has single bonds so it will end in "-ane" because is it an Alkane. The second hydrocarbon has a double bond; therefore, it's a Alkene resulting in the ending of "-ene". BUT the double bond is located on the second carbon; therefore you must add "2-" before the name.
The answer for apex is - A crop disease becoming resistant to medicine-.
