Proton 26
neutron 0
you can tell how many proton by the atomic number
Answer:
The answer is 5. Compound
A chemical formula identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element.
<em>For example, the empirical formula of ethanol may be written C2H6O because the molecules of ethanol all contain two carbon atoms, six hydrogen atoms, and one oxygen atom.</em>
Answer:
A. Water
Explanation:
H2O means that there are two hydrogen and one oxygen in every water molecule.
The answer is dissolved in water, because in chemistry, (aq) is shorthand for aqueous solution.
