7 grams of Oxygen. The Law of conservation of mass says that mass can be neither created nor destroyed, so the total mass of the products (in this case the oxygen plus the mercury) must equal the total mass of the reactants (in this case, the mercuric oxide).
To analyze. Oml they won't let me add it unless I write more. Smh.
Answer:
A. Weathering breaks down rocks; Deposition leaves them in new places.
Explanation:
Weathering is basically the complete process of rocks breaking apart. In contrast, deposition is when the rocks are moved and carried away from their original place and put in new locations.
<u>Answer:</u> The chemical formula of the compound formed is 
<u>Explanation:</u>
Acids are defined as the chemical species which donate hydrogen ions when dissolved in water.
Ionic compound is formed by the complete transfer of electrons from 1 atom to another atom. The cation is formed by the loss of electrons by metals and anions are formed by gain of electrons by non metals.
We are given:
An anion having chemical formula 
named as sulfate ion
This will combine with 2 hydrogen ions to form a neutral compound. The neutral compound formed is sulfuric acid.
Hence, the chemical formula of the compound formed is
Answer:
Its the first option
Explanation:
The volume of NaOH added will be more than that which is needed to neutralise the acetic acid. As the result is calculated from the volume of NAOH added from the burette, the result will be higher than the true result.
