Oxygen has the atomic number 8, which eliminates options B and D right away. Any neutral atom, including the oxygen atom, has the same number of protons and electrons, meaning the number of electrons is also 8. If you're still not sold, the oxygen atom has a mass number of 16, which is the sum of the protons and neutrons in the atom, meaning there have to be 8 neutrons as well. The answer is option A.
Answer:
Cation is hydrogen ion or proton
Anion is chloride ion
Explanation:
Arrhenius theory:-
The Arrhenius theory was introduced introduced by Swedish scientist named Svante Arrhenius in 1887.
According to the theory, acids are the substances which dissociate in the aqueous medium to produce electrically charged atoms ( may be molecule). Out of these species furnished, one must be a proton or the hydrogen ion, 
.
Thus, HCl dissociate as:-
Thus, cation is hydrogen ion or proton
Anion is chloride ion
37 electrons
Explanation: Rb atom has 37 electrons and 37 protons. when 1 electron is removed number of protons remains 37 but number of electrons is 36.36 negative charges is balanced by 36 positive charges. one extra proton is present so 1 positive charge
Answer:
7.00
Explanation:
Pure Water is the only purely neutral substance on earth so it has a neutral pH of 7
Answer:
Hello, There!
<em>What type of system is best used to observe conservation of matter because all of the mass stays in one place?</em>
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A closed system Would be The Correct Answer!
Explanation:
In a closed system, matter does not enter or leave And it Says In one place.
Therefore, making A Closed System the Correct Answer.
