Answer: The correct option is A ( Break the crackers into pieces.)
Explanation:
The rate of reaction between two substances can be affected by the following factors:
--> surface area of reacting substances
--> concentration
--> reaction mechanism
--> temperature
--> the presence of a catalyst and
--> pressure ( if gaseous)
Reagents in solution tend to react faster than reagents in solid form. This is because molecules are freer to move about and collide more effectively in solutions. For example, a lump of zinc will not react as fast as powdered zinc with dilute hydrochloric acid to produce hydrogen. This is the same with the reaction between the crackers and soup. To increase the reaction of the substances, the crackers needs to be broken into pieces(thus,increased surface area)
Answer:
D
Explanation:
Metals can turn into rust in the rain, and wood can turn into ashes when burned are 2 examples of chemical reactions in order to finish your summary.
Answer: Chemical precipitation is the formation of a<em><u> </u></em><em><u>solid</u></em> from a solution. In a precipitation reaction, the precipitate <em><u>separates</u></em> from the solution.
Explanation:
Some reactions that happen in aqueous solutions produce precipitate. The precipitate is a solid compound formed by the chemical combination of ions, which is not soluble. In brief, a solid produced during a chemical reaction is a precipitate.
An example of a precipitation reaction is the double replacement reaction between sodium hydroxide and copper(II) chloride, which is represented by this equation:
2NaOH (aq) + CuCl₂ (aq) → 2NaCl (aq) + Cu(OH)₂ (s).
↑
precipitate
The reactants, NaOH and CuCl₂ (aq) are in aqueous solutions, which is indicated adding (aq) to the right of the chemical formula, the product NaCl, being a soluble salt, remain in solution, which is also indicated by the use of (aq), but the product Cu(OH)₂ is insoluble, and forms the precipitate, which is showm by the use of (s).
Don’t really know what it is just need points end
High pressure<span> systems circulate clockwise. These "motions" (caused by these circulations) are the building blocks in our atmosphere. They give us our weather. A </span>Low's<span> counter-clockwise circulation forces air upward (ultimately resulting in condensation, cloud formation and ultimately precipitation).</span>