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rodikova [14]
3 years ago
9

An reading of 8 on the pH scale is indicative of?

Chemistry
2 answers:
soldier1979 [14.2K]3 years ago
8 0

Answer:

Basic or alkaline

Explanation:

ph 7 is neutral

below 7 is acidic

above 7 is basic or alkaline

Nataly [62]3 years ago
6 0

Answer:

\boxed {\boxed {\sf Weak \ base}}

Explanation:

The pH scale which classifies a solution's acidity or basicity.

  • A pH below 7 is acidic. This means it has more hydrogen ions.
  • A pH equal to 7 is neutral. This has equal hydrogen and hydroxide ions.
  • A pH above 7 is basic. This has more hydroxide ions.

We are given a reading of 8. This is above 7, but not much greater. Therefore, it could be classified as a weak base.

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Write a chemical equation for the reaction that occurs in the following cell: Cu|Cu2+(aq)||Ag+(aq)|Ag Express your answer as a b
Alinara [238K]

Answer:

Explanation:

The cell reaction properly written is shown below:

              Cu|Cu²⁺_{aq} || Ag⁺_{aq} | Ag

From this cell reaction, to get the net ionic equation, we have to split the reaction into their proper oxidation and reduction halves. This way, we can know that is happening at the electrodes and derive the overall net equation.

  Oxidation half:

                  Cu_{s}  ⇄ Cu²⁺_{aq} + 2e⁻

At the anode, oxidation occurs.

  Reduction half:

                  Ag⁺_{aq} + 2e⁻ ⇄ Ag_{s}

At the cathode, reduction occurs.

To derive the overall reaction, we must balance the atoms and charges:

             Cu_{s}  ⇄ Cu²⁺_{aq} + 2e⁻

              Ag⁺_{aq} + e⁻ ⇄ Ag_{s}

  we multiply the second reaction by 2 to balance up:

         2Ag⁺_{aq} + 2e⁻ ⇄ 2Ag_{s}

The net reaction equation:

Cu_{s} + 2Ag⁺_{aq} + 2e⁻⇄ Cu²⁺_{aq} + 2e⁻ + 2Ag_{s}

We then cancel out the electrons from both sides since they appear on both the reactant and product side:

  Cu_{s} + 2Ag⁺_{aq} ⇄ Cu²⁺_{aq} + 2Ag_{s}

6 0
2 years ago
What two motions combine to produce orbit?
Alex73 [517]
<span>Forward & falling. Hope this helps!</span>
6 0
3 years ago
____________ is refining the extracted raw metals into a purest form
Alex

Answer:

Extractive metallurgy

Explanation:

Extractive metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into a purer form.

8 0
3 years ago
Why does copper give off blue light and lithium give off red light?
slava [35]
Because each element has an exactly defined line emission spectrum, scientists are able to identify them by the color of flame they produce.
5 0
3 years ago
How are protons and neutrons different from and similar to each other?
eimsori [14]

Answer: similar: Protons and neutrons have approximately the same mass, about 1.67 × 10-24 grams. Different:Protons are a type of subatomic particle with a positive charge. And  Neutrons are a type of subatomic particle with no charge (they're neutral).

Explanation:

hope that helped

8 0
2 years ago
Read 2 more answers
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