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What substance lowers the energy needed to start a chemical reaction?
A substance that lowers the energy needed to start a chemical reaction is a catalyst.
What is a substance that lowers H and decreases pH when it dissociates in water?
A substance that lowers hydrogen ion concentration (H⁺) and decreases pH when it dissociates in water is an acid. When an acid, such as hydrochloric acid (HCl), dissociates in water, it releases H⁺ ions, increasing the acidity of the solution and resulting in a lower pH. This process is fundamental to understanding acid-base chemistry.
When adding 1M H to a solution does it increase acidity?
Yes, adding 1 M hydrogen ions (H⁺) to a solution increases its acidity. Acidity is measured by the concentration of hydrogen ions in a solution; therefore, an increase in H⁺ concentration lowers the pH and makes the solution more acidic.
What term describes a substance rhat lowers the amount of energy needed to start a chemical reaction?
This substance is called a catalyst.
Does sugar affect melting point?
No, sugar does not affect the melting point. The melting point of a substance is determined by its chemical composition and structure. However, adding sugar to a solution can affect its boiling point, but that is a different property.
What substance lowers the energy needed to start a chemical reaction?
A substance that lowers the energy needed to start a chemical reaction is a catalyst.
What happens to the concentration of hydroxide ions in an alkaline solution on repeated dilution?
When an alkaline solution is repeatedly diluted, the concentration of hydroxide ions decreases. This is because the amount of the alkaline substance is being spread out in more volume of solvent, resulting in a lower concentration of hydroxide ions in the solution.
An acid is a(n) .?
An acid is a substance that donates a proton (hydrogen ion) in a chemical reaction. This leads to the formation of hydronium ions in solution and lowers the pH of the solution. Acids typically have a sour taste and can react with bases to form salts.
What term describes a substance that lowers the energy needed to start a chemical reaction?
This substance is a catalyst.
What do acids do in a solution'?
Basically, donate protons to the solution. H +
What is a substance that lowers H and decreases pH when it dissociates in water?
A substance that lowers hydrogen ion concentration (H⁺) and decreases pH when it dissociates in water is an acid. When an acid, such as hydrochloric acid (HCl), dissociates in water, it releases H⁺ ions, increasing the acidity of the solution and resulting in a lower pH. This process is fundamental to understanding acid-base chemistry.
What term describe a substance that lowers the amount of energy needed to start a chemical reaction?
Catalyst
What term describes a substance that lowers the amount of energy needed to start a chemical reactions?
Catalyst
What definition best describes and acid?
A substance in a solution that releases hydrogen ions and lowers the pH APEX
Which definition best describes an acid?
A substance in a solution that releases hydrogen ions and lowers the pH APEX
Why does the pH drop when temperature increases?
When temperature increases, the pH drops because higher temperatures can cause chemical reactions to occur more quickly, leading to an increase in the concentration of hydrogen ions in the solution. This increase in hydrogen ions lowers the pH level of the solution.
What are two ways you can decrease the concentration of a solution?
You can decrease the concentration of a solution by diluting it with a solvent, such as water. Another way is by adding more solvent to the solution to increase its total volume, which effectively lowers the concentration of the solute in the solution.
