Answer:
3
Explanation:
If oxygen reacts with iron, then both must be reactants and rust the product of that reaction
Yes, but they are tubular organs and like all other organs are made up of tissues
Answer:
Although chlorine itself usually does not cause environmental harm, it combines rapidly to form chemicals such as dioxins that pollute water, contaminate fish and transfer to humans and larger animals that eat the fish.
Explanation:
The answer to this is to prevent dilution of the base, which may affect the results. I think that is right.
The correct answer should be D :)
