1. Consider the equation below: a) Indicate the oxidation number of the elements that are reactants.
b) Considering that it occurs in an acid environment, make the balance, indicating all your reasoning.
c) Identify the oxidizing agent and reducing agent.

Avariable that is not being directly tested during an experiment should be

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.

Citric acid has a ph between 1 and 3.  it is considered to be aa. weak acidb. weak basec. strong based. strong acid