The answer in chemistry is mol/L and altho it is represented by the symbol M usually.
Answer:
It is a proposed explanation for a phenomenon.
Answer:
5 electrons
Explanation:
Valence electrons are electrons located in the outermost energy shell, so you want to count the number of electrons in the last energy shell.
You can divide the configuration into 1s2 / 2s22p6 / 3s23p3 to see the energy shells in this atom. There are 3 shells occupied by the atom's electrons, so you need to count the electrons in the third shell as those are its valence electrons.
2 + 3 = 5 valence electrons total
Note: you don't count the 3 before the letter because that only indicates the shell level, not the number of electrons. Count only the exponents.
Answer:
Acid is a substance which water solution turns blue litmus paper to a red color.
Explanation:
The operational definition means what acid did in the experiment.
Acid is a substance which water solution turns blue litmus paper to red color.
