1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mylen [45]
3 years ago
6

The acidity or alkalinity (basicity ) of an unknown aqueous solution is indicated by its

Chemistry
1 answer:
Furkat [3]3 years ago
7 0
The correct answer is A. PH value

If a substance is very acidity it has a high PH, if it is less acidic (alkalinity) is has a lower PH. For instance, water has a PH of 7 because it is in between of being acidic and alkaline. 
You might be interested in
What animal is most like to harmed when a beaver builds a dam​
siniylev [52]

Answer:

Small fish or insects.

Explanation:

3 0
3 years ago
Read 2 more answers
Help please you don’t need to show work
aleksandrvk [35]

Answer:

24.07

Explanation:

6 0
3 years ago
Free-energy change, ΔG∘, is related to cell potential, E∘, by the equation ΔG∘=−nFE∘ where n is the number of moles of electrons
elena-s [515]

Answer:

-372000 J or -372 KJ

Explanation:

We have the electrochemical reaction as;

Mg(s)  +  Fe^2+(aq)→  Mg^2+(aq)  +   Fe(s)

We must first calculate the E∘cell from;

E∘cathode -  E∘anode

E∘cathode = -0.44 V

E∘anode = -2.37 V

Hence;

E∘cell = -0.44 V -(-2.37 V)

E∘cell = 1.93 V

n= 2 since two electrons were transferred

F=96,500C/(mol e−)

ΔG∘=−nFE∘

ΔG∘= -( 2 * 96,500 * 1.93)

ΔG∘= -372000 J or -372 KJ

4 0
3 years ago
A 1.00 L volume of HCl reacted completely with 2.00 L of 1.50 M Ca(OH)2 according to the balanced chemical equation below. 2HCl
tensa zangetsu [6.8K]
The answer is D
6.00 M. I just took the test 
7 0
3 years ago
Read 2 more answers
If you can help answer the question if you can't then don't
vampirchik [111]

Answer:

Yes its both a physical and chemical change heres why.

When heated , the wax melts to form a liquid wax . The liquid wax then becomes a solid wax upon cooling ( Physical change )

When the candle is lit, the wax near the tip of the candle will melt . The wick then absorbs the liquid wax . The liquid wax then vapourizes due to the heat emitting from the flame . The wax vapour then burns to give off a black substance ( what we will to as CO₂ , soot ) , heat and water vapour

(Chemical change )

Brainliest ? Hope I answered your question

4 0
3 years ago
Other questions:
  • Which substance below will exhibit hydrogen bonding between the molecules of the substance?
    13·1 answer
  • What is an conclusion?
    14·2 answers
  • Final setup in scientific method
    9·1 answer
  • How many moles are in 100 grams of NaCl
    12·2 answers
  • 100 points! Report on an element
    10·2 answers
  • 1. How is the atom count for each element on the reactant side of a balanced chemical equation related to the atom count for eac
    14·1 answer
  • PLZ HELP I WILL GIVE BRAINLIST ITS DUE IN AN HOUR
    8·1 answer
  • 12. Study the chemical reaction below, what are the product(s) in the reaction and what are the reactant(s) in the reaction (Sho
    12·1 answer
  • A partir de lo propuesto por Bohr en 1913, que postulado es correcto:
    5·1 answer
  • Which group has the greatest metallic character?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!