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Mrrafil [7]
3 years ago
13

Please someone explain this too me​

Chemistry
1 answer:
Brums [2.3K]3 years ago
3 0
I believe it would be 7.731. x 10^5? That is if they want you to evaluate.
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Complete the sentence. When an acid is added to water, hydroxide ions __________.
kenny6666 [7]

Answer:

The hydroxide ions decrease.

Explanation:

I got it right on the quiz. This is what I saw. Read this, "Adding water to an acid or base will change its pH. Water is mostly water molecules so adding water to an acid or base reduces the concentration of ions in the solution. When an acidic solution is diluted with water the concentration of H + ions decreases and the pH of the solution increases towards 7."

Hope this helps! Tell me if this is wrong just incase.

8 0
3 years ago
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What causes the force that produces gas pressure?
Yuliya22 [10]

( The rapid motion and collisions of molecules ) with the walls of a container causes pressure.

Source; https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Physical_Properties_of_Matter/States_of_Matter/Properties_of_Gases/Gas_Pressure

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3 years ago
What is the correct ionic charge for a barium atom
AVprozaik [17]
+2

Barium has a positive charge of 2
3 0
2 years ago
Write the net cell equation for this electrochemical cell. Phases are optional. Do not include the concentrations. Co ( s ) ∣ ∣
Tatiana [17]

Answer: The overall equation will be Co(s)+2Ag^+(aq)\rightarrow Co^{2+}(aq)+Ag(s)

Explanation:

The representation is given by writing the anode on left hand side followed by its ion with its molar concentration. It is followed by a salt bridge. Then the cathodic ion with its molar concentration is written and then the cathode.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

Anode : Co(s)\rightarrow Co^{2+}(aq)+2e^{-}

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

Cathode : Ag^+(aq)+e^{-1}\rightarrow Ag(s)  \times 2

The number of electrons lost must be equal to the number of electrons gained , thus overall equation will be :

Co(s)+2Ag^+(aq)\rightarrow Co^{2+}(aq)+Ag(s)

5 0
2 years ago
Convert the following word equations into chemical equations using the correct
Alex17521 [72]

Answer:

Below.

Explanation:

1.   Al2(SO4)^3 (aq) + 6LiOH aql)  ----> 3Li2SO4 (aq) + 2Al(OH)^3 (s)

2.  (NH4)2CO3 (aq) + MgCl2 (aq)  ---->  2(NH4)Cl (aq) +  MgCO3 (s).

7 0
3 years ago
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