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IRISSAK [1]
4 years ago
10

What exactly does the 2+ mean on element Fe2+?

Chemistry
1 answer:
enot [183]4 years ago
8 0
It means it is an ion. It has lost two protons making it a positive ion.
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Water is stored in a tank at 75°C and 2.5 atm. Use the Antoine equation calculate the boiling temperature of the water (F). Repo
andreev551 [17]

Explanation:

Antoine equation is as follows.

              log_{10} P = A - \frac{B}{C + T}

It water is at 75^{o}C, then values of constants A, B, and C will be as follows.

               A = 8.07131,  B = 1730.63,  C = 233.426

When pressure, P = 2.5 atm then putting these given values into the above equation as follows.

               log_{10} P = A - \frac{B}{C + T}

               log_{10} (2.5 \times 101.325 \times 10^{3}) = (8.07131 - \frac{1730.63}{233.426 + T})    

                5.40365 = 8.07131 - \frac{1730.63}{233.4 + T}

                        T = 415.33^{o}C

Converting the temperature into Fahrenheit as follows.

                   T_{F} = \frac{9}{5} \times 415.33 + 32

                                  = 779.5^{o}F

Thus, we can conclude that the boiling temperature of the water is 779.5^{o}F.

6 0
4 years ago
How you would go about separating a mixture of salt and sand. Knowing that salt will dissolve in water. Device a method to separ
DanielleElmas [232]

Separating a mixture of salt and sand will involve two main techniques such as filtration and evaporation.

<h3>What is Filtration?</h3>

This is a technique which is used to separate a fluid from a solid matter such as sand etc.

Since salt dissolves in the water, the fluid is collected using the filter paper placed inside the funnel. After which it enters the Erlenmeyer flask and is heated to allow for evaporation of water and collection of the salt.

Read more about Filtration here brainly.com/question/23945157

#SPJ1

8 0
2 years ago
A fusion example is the combining of hydrogen isotopes. <br> a. True<br> b. False
solmaris [256]
This statement is true. The combining of hydrogen isotopes is indeed a fusion example. Fusion is the process of the combining two distinct entities and most fusion reactions combine hydrogen isotopes to come up with such product.
3 0
3 years ago
This graph represents an endothermic reaction. What does it show about the potential energy of reactants and products? Abuzua nu
Nata [24]

Answer:

The potential energy of the products is greater than the potential energy of the reactants

Explanation:

i just took the test

6 0
3 years ago
Tiene los 4 lados iguales y los 4<br>ángulos rectos.​
azamat
Square espero que eso te ayude!
7 0
4 years ago
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