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
svet-max [94.6K]
4 years ago
7

Write a balanced half-reaction describing the oxidation of aqueous gold(i) cations to aqueous gold(iii) cations.

Chemistry
1 answer:
bezimeni [28]4 years ago
7 0
<span>Balanced half-reaction: Au</span>⁺<span>(aq) </span>→ <span> Au</span>³⁺(aq) + 2e⁻.
Oxidation reaction is increasing of oxidation number of element, because element or ion lost electrons in chemical reaction.
Gold lost two electrons and change oxidation number from +1 to +3.
Reduction is lowering oxidation number because element gain electrons.
You might be interested in
When placed in a freezer, liquid water turns into solid ice. What best describes this change?
skelet666 [1.2K]

Answer:

The water molecules slow down, stronger attractions form between them, and the molecules are pulled closer together.

Explanation:

In solids the packing of the particles is closer and tighter thus increasing the intermolecular attraction. This makes solids rigid with a definite shape, size and volume. On the other hand in liquids the packing of the particles is loose thus decreasing the intermolecular attraction. This makes liquids able to flow, and takes the shape and volume of the container in which they are placed.

3 0
3 years ago
The specific heats at constant pressure of some common gases are provided as a thirdorder polynomial: �;&lt;&lt;&lt; = � + �� +
3241004551 [841]

Answer:

1.991 kJ

Explanation:

Calculate the amount of heat ( J )

CH4 ;

coefficients are :  a = 19.89 , b = 5.02 * 10^-2 , c = 1.269 * 10^-5 , d = -11.01 * 10^-9

attached below is the detailed solution

3 0
3 years ago
Properties of waves poem plzz help!!!!!!
GalinKa [24]

Answer:

They include frequency, period,speed,amplitude and phase

3 0
4 years ago
Which answer best describes the potential energy diagram for a reaction that takes place in water, if the temperature of the sur
blondinia [14]
D. the potential energy of the reactants is low; the potential energy decreases gradually; then increases slightly.

6 0
3 years ago
Read 2 more answers
12) Balance the following chemical equation:<br> Zn +<br> H3PO4<br> Zn3(PO4)2 +<br> H2
KIM [24]

Answer:

Sorry I am not very good at chemistry.

Explanation:

7 0
3 years ago
Other questions:
  • 5f2 (g) + 2nh3 (g) → n2f4 (g) + 6hf (g) if you have 58.5g nh3, how many grams of f2 are required for a complete reaction? how ma
    8·1 answer
  • A 1.50 L sample of H₂ gas at 3.50 atm was combined with 2.00 L of N₂ gas at 2.55 atm pressure at a constant temperature of 25.0
    12·1 answer
  • 2. What is an example of a molecule<br> with different types of atoms?
    7·1 answer
  • An _____ bond forms when one element give electrons to another element - one becomes a positive ions and the other a negative io
    13·1 answer
  • How does a hydra move?....In short form​
    8·2 answers
  • Which isotope has the greatest number of protons?
    6·1 answer
  • How many moles of ammonia gas are in 35.7 liters at STP?
    7·1 answer
  • Where do an organisms genes come from?
    9·1 answer
  • When you mix water and salt you get a. ​
    8·1 answer
  • Hormones are secreted by glands in the human body. The hormones control different functions of the body by targeting specific or
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!