<span>Democritus believed that matter is made up of tiny individual particles known as </span>Atoms
1cc (cubic centimeter) and 1mL (milliliter) are the same volume. So, 25mL = 25cc
<u>Answer:</u> The net ionic equation is written below.
<u>Explanation:</u>
Net ionic equation of any reaction does not include any spectator ions.
Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.
The chemical equation for the reaction of ammonium carbonate and lead nitrate is given as:

Ionic form of the above equation follows:

As, ammonium and nitrate ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.
The net ionic equation for the above reaction follows:

Hence, the net ionic equation is written above.
Calcium has the greatest mass of the first twenty elements with a mass of approximately 40.08
The answer is True because elements in a compound combine and become an entirely different substance with its own unique properties.