Answer:
<h3>Cu + O2 = CuO - Chemical Equation Balancer.</h3>
Answer: observe the rate of the reaction and then observe it again with the catalyst included.
Explanation:
Rate of the reaction is determined by how fast reactants change into products.
The reactants must possess a minimum amount of energy called as activation energy to cross the energy barrier and convert to products.
A catalyst is a substance which when added to a chemical reaction, increases the rate of a reaction by taking the reaction through a different path which involves lower activation energy and thus more molecules can cross the energy barrier and convert to products.
The catalyst thus increases the rate of reaction.
The Atomic nucleus has a charge of 0.
Explanation: an atom consists of of positively charged nucleus, surrounded by one or more electrons (which are negatively charged.) The positive charges equal the negative charges so the atom ends up having no charge.
<span>metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA or DNA core, a protein coat, and, in more complex types, a surrounding envelope.</span>