Answer:
Bulk matter can exist in three states: gas, liquid, and solid. Gases have the lowest density of the three, are highly compressible, and fill their containers completely
Explanation:
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Complete equation, ionic equation, and net ionic equation for NH4C2H3O2(aq) + NH3 (aq)
This type of energy travels through vibrations on waves = 7. sound energy
This is the energy found in the nucleus of an atom = 9. nuclear energy
This type of energy can be transferred in three different ways = 6. thermal energy
This is the term used when energy changes from one form to another = 10. energy conversions
This has to do with the speed of an object and how much mass it has = 2. kinetic energy
This can be either kinetic or potential and has to do with the energy of position and motion of an object = 1. mechanical energy
This type of energy is stored energy = 3. potential energy
This is radiant energy from the sun = 5. light energy
This is energy that is transferred by the movement of electrons through a conductor = 4. electrical energy
This type of energy is often found in things like batteries or food = 8. chemical energy
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Calcium reacts gently with water to give hydrogen and calcium hydroxide, which is only slightly soluble, thus slows down the reaction.
It will be assumed that hydrochloric acid used is a dilute aqueous solution.
However, calcium reacts with hydrochloric acid to give calcium chloride which is readily soluble in water, and hydrogen, being a typical reaction of relatively active metals with acids.
Ca(s) + 2HCl(aq) -> CaCl2(aq) +H2(g) ↑ + heat
The clues that it is a chemical reaction could be:
- formation of a new substance, gaseous hydrogen
- disappearance of a metallic solid in the solution
- heat formed during the vigorous reaction.
As silver is below hydrogen in the electrochemical series, it will not be expected to react with dilute hydrocloric acid. (however, it dissolves in oxidizing acid such as nitric acid, but not displacing hydrogen as a product).
