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
ella [17]
2 years ago
8

NaOH(aq) is transferred into a test tube. CaCl2(aq) is added to the tube. What is the formula for the precipitate (if any) that

forms
Chemistry
1 answer:
Ilya [14]2 years ago
6 0

Answer:

2NaOH (aq) + CaCl2 (aq) -> 2NaCl(aq) + Ca(OH)2(s)

Formula of precipitate: Ca(OH)2 <em>(s)</em>

Explanation:

First, we do the double replacement reaction to determine our chemical equation between the reactants and products. Once we have our products, with a solubility chart (I added one below) we can determine which of the products is soluble or insoluble.

In this case NaCl is soluble or aqueous (meaning it can dissolve in water) and Ca(OH)2 is insoluble (meaning that when the reactions takes place, these two will form a solid/precipitate)

You might be interested in
Using the following standard reduction potentials, Fe3+(aq) + e- → Fe2+(aq) E° = +0.77 V Ni2+(aq) + 2 e- → Ni(s) E° = -0.23 V ca
lina2011 [118]

<u>Answer:</u> The above reaction is non-spontaneous.

<u>Explanation:</u>

For the given chemical reaction:

Ni^{2+}(aq.)+2Fe^{2+}(aq.)\rightarrow 2Fe^{3+}(aq.)+Ni(s)

Here, nickel is getting reduced because it is gaining electrons and iron is getting oxidized because it is loosing electrons.

We know that:

E^o_{(Fe^{3+}/Fe^{2+})}=0.77V\\E^o_{(Ni^{2+}/Ni)}=-0.23V

Substance getting oxidized always act as anode and the one getting reduced always act as cathode.

To calculate the E^o_{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{cathode}-E^o_{anode}

E^o_{cell}=-0.23-0.77=-1.0V

Relationship between standard Gibbs free energy and standard electrode potential follows:

\Delta G^o=-nFE^o_{cell}

As, the standard electrode potential of the cell is coming out to be negative for the above cell. Thus, the standard Gibbs free energy change of the reaction will become positive making the reaction non-spontaneous.

Hence, the above reaction is non-spontaneous.

3 0
3 years ago
1. Is air a mixture or a compound?<br> mixture
Mekhanik [1.2K]
Its mixture goodluck :)
8 0
2 years ago
Read 2 more answers
On.<br> pe. Where is the Hubble telescope located?
Lubov Fominskaja [6]

Answer:

space

Explanation:

6 0
3 years ago
Read 2 more answers
Which methods will help you properly identify pH with indicator paper? Check all that apply. Set a piece of pH paper in front of
monitta

Set a piece of pH paper in front of each solution before testing to keep organized.

Use a transfer pipet to remove a few drops from the solution to drop onto the paper.

Wait a minute or so before reading color.

Is the correct answer...

4 0
3 years ago
Read 2 more answers
What’s 73m equal to in dm
MaRussiya [10]

Answer:730

Explanation:

6 0
3 years ago
Other questions:
  • What would happen if prey was removed from the food web need asap
    8·2 answers
  • Lithium has one valence electron. Bromine has seven valence electrons.How might they form a covalent bond?
    8·2 answers
  • QUICK!! WILL MARK BRAINLIEST!! what is the volume of 2.7 moles of co2 ?
    9·1 answer
  • Two advantages of using hydrogen to fuel cars
    9·1 answer
  • The boiling point of isopropyl alcohol is 80.3°C. What state of matter is isopropyl alcohol in at 99°C?
    9·1 answer
  • Give the main conclusion from the 1911
    12·1 answer
  • Chloroform was used as an anesthetic for childbirth and surgery during the nineteenth century. Write the molecular formula of ch
    11·1 answer
  • Both of janies parents have dark hair. how likely is janie to have blonde hair? ​
    8·1 answer
  • 1. A train travels North at 103 km/h. Is this an example of speed, velocity, or acceleration. speed velocity accelleration​
    8·2 answers
  • 100gm of a 55% (M/M) nitric acid solution is to be diluted to 20% (M/M) nitric acid.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!