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
g100num [7]
4 years ago
8

Which of the following represents the balanced reduction half-reaction from the redox reaction? (2 points)

Chemistry
1 answer:
-Dominant- [34]4 years ago
5 0

In general oxidation is defined as gain of oxygen or loss of electron or hydrogen by an atom. Reduction is defined as gain of electron or hydrogen or loss of oxygen by an atom.

In a balanced redox reaction we have two half reactions

a) reduction half reaction : the oxidation number of element decreases

b) oxidation half reaction : the oxidation number of element increases

Pb(s) + Pd(NO_{3} )_{2}(aq)---> Pb(NO_{3} )_{2}(aq)+ Pd(s)

The element undergoing reduction is Pd.

the oxidation number of Pd decreases from +2 to 0

Thus the reduction half reaction will be

Pd^{+2} + 2e- --->Pd(s)

The Pd (II) ion will take two electrons and will give Pd (0)

Answer is Pd^{+2} + 2e- --->Pd(s)

You might be interested in
A compound consists of only one type of element?
Gnoma [55]

Answer:

A compound can easily be split up into its different elements.

Explanation:

5 0
3 years ago
If you have a block of plastic and a block of copper that are the same mass and are placed in the sun for 10 minutes. What is th
LuckyWell [14K]

INFORMATION:

Is given that:

- if you have a block of plastic and a block of copper that are the same mass and are placed in the sun for 10 minutes.

And after the 10 minutes copper has a higher temperature.

We must determine the reason.

STEP BY STEP EXPLANATION:

To determine it, we need to know the concept of specific heat

If the block of copper has a higher temperature after 10 minutes, that means copper needs less heat to raise its temperature.

So, plastic has a higher specific heat than metal, so it takes more energy to heat plastic than copper. As a result, plastic would heat up more slowly.

ANSWER:

The explanation for the copper having a higher temperature after 10 minutes in the sun, is that plastic has a higher specific heat than metal, so it takes more energy to heat plastic than copper. As a result, plastic would heat up more slowly. Since the copper has a lower specific heat, it will be heat quickly.

5 0
1 year ago
2. If you are given the mass of a reactant in grams and want to calculate the mass of
Darina [25.2K]

Answer:

1. Convert given mass of reactant to moles.

2. Convert moles of reactant to moles of product using the coefficients in the balanced equation.

3. Convert moles of product back to grams of product

Explanation:

In order to find out the mass of a given product in grams you would have to convert the grams into moles by multiplying 1 mole over the given mass of the reactant. Then, you would convert the moles of the reactant into moles of the product using mole ratio. And lastly, you would multiply by the mass of the product to calculate the mass back to grams.

Hope this helps!!<3

6 0
3 years ago
19) Which if the following is a heterogeneous mixture?<br> a. Air<br> b. Steel<br> d. Soil
NikAS [45]
A. air is a heterogeneous mixtu6
6 0
4 years ago
Read 2 more answers
Which property provides the best evidence that the unknown substance is a solid
agasfer [191]
The shape would be the answer if it is taking up space it's a liquid if if it stays in the area of space it's a solid
7 0
4 years ago
Other questions:
  • How many covalent bonds does hydrogen have
    12·2 answers
  • Calculating [H.]
    11·1 answer
  • Wind in the atmosphere and currents in the ocean are caused by uneven heating that produces _____.
    10·2 answers
  • The following reaction was carried out in a 3.00 L reaction vessel at 1100 K:
    11·1 answer
  • A three-step mechanism has been suggested for the formation of carbonyl chloride: Step 1: Cl2 → 2 Cl Step 2: Cl + CO → COCl Step
    11·1 answer
  • If water is still what type of energy is that
    11·2 answers
  • How does latitude affect climate? A The closer to the poles, the warmer it gets. B The closer to the equator, the warmer it gets
    9·1 answer
  • E. Is it metal or non-metal? Why?<br>P<br>nº<br>fig. 11.12​
    15·1 answer
  • A água oxigenada é uma solução que contém a substância peróxido de hidrogênio.Ela é usada como bactericida.Quando aplicamos a ág
    15·1 answer
  • Which of the statements is correct?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!