Chemistry College

Suppose you mix Na2SO4 and KCl solutions according to the given equation.
Na2SO4 (aq) + 2 KCl(aq) + 2 NaCl(aq) + K2SO4 (aq)
What evidence of a reaction do you expect to see?
Select one:
A precipitate should form.
A gas should form.
Water should form.
Ο Ο
No reaction should occur.

Answers

Answer 1

Answer:

No reaction should occur

Explanation:

Water cannnot be made from the components

Nothing will be released as a gas

Both products are soluible in water therefore will not form a precipitate.

Answer 2

If I mix a solution of Na2SO4 and KCl, no reaction should occur.

Whether or not, a reaction occurs when two substances are mixed depends on the respective positions of the substances in the electrochemical series.

Now, we are expecting the reaction; Na2SO4 (aq) + 2 KCl(aq) + 2 NaCl(aq) + K2SO4 (aq) to occur. The big question is, between sodium and potassium, which is higher in the electrochemical series?

A little look into the image attached shows that potassium is higher than sodium in the series so the reaction is possible.

However, the both products are aqueous, they are both soluble in water hence no visible reaction occurs.

Learn more: https://brainly.com/question/24058474

Suppose You Mix Na2SO4 And KCl Solutions According To The Given Equation.Na2SO4 (aq) + 2 KCl(aq) + 2

Related Questions

what is an isotope ​

Answers

elements with same atomic number but different atomic mass are called as isotopes

how can i separate water salt starch​

Answers

Decantation
Centrifugation
Filtration
Evaporation

Answer:

By Boiling Them soo water can evaporate and separates from salt.

E. Give evidence to support or dispute: "In nature, the chance of finding one isotope
of an element is the same for all elements." (this objective is completed by
responding to question 2 below)

Answers

Answer:

This question appears incomplete

Explanation:

However, the chance of finding one isotope of an element is not the same for all elements because some elements/isotopes are more in abundance than some other elements/isotopes; for example the most abundant element on earth is nitrogen-14, hence the chances of finding nitrogen-14 in nature is higher the chances of finding any isotope of Xenon.

Also, while isotopes occur naturally, some do not. Hence, the chances of finding a naturally occurring isotopes (no matter how rare like Xenon-126) is higher than the chances of finding artificial radioisotopes like technetium-95 and promethium-146 (whose chances are zero because they cannot be found naturally occurring).

write the molecular formula for the following compound.
​

Answers

Answer : The molecular formula of the compound is, [tex]C_8H_9O_3N[/tex]

Explanation :

Molecular formula : It is the representation of substance by the symbols and it denotes the number of atoms of each element present in the compound.

Now count the number of carbon, hydrogen, nitrogen and oxygen atoms present in the given compound.

As we see that in the given compound, there are 8 atoms of carbon element, 3 atoms of oxygen element, 1 atom of nitrogen element, 9 atoms of hydrogen element.

Thus, the molecular formula of the compound will be [tex]C_8H_9O_3N[/tex]

Which unit of measurement should you use when measuring the length of an earthworm?

Answers

Answer:

kilometers.........

PLZ HELP I'LL AWARD BRAINLIEST
What is the name of the molecular geometry (shape) for this Lewis structure? Immersive Reader.


(A) bent

(B) Trigonal planar

(C) Trigonal pyramidal

(D) Tetrahedral

Answers

Answer:

B. Trigonal planar

Explanation:

hope this helps. brainliest please?

The skeletal structure in line-angle (line-bond) mode of 2,3,3,5-tetramethylhexane is shown. Identify the number of hydrogen atoms bound to each carbon atom in the structure.

Answers

Answer:

There are 22 hydrogen in 2,3,3,5-tetramethylhexane (C10H22)

From the left to the right of the skeletal structure:

1st Main Carbon = 3 hydrogen

2nd Main Carbon = 1 hydrogen

1st Branch Carbon = 3 hydrogen

3rd Main Carbon = 2 hydrogen

2nd Branch Carbon = 3 hydrogen

3rd Branch Carbon = 3 hydrogen

4th Main Carbon = 0 hydrogen

4th Branch Carbon = 3 hydrogen

5th Main Carbon = 1 hydrogen

6th Main Carbon = 3 hydrogen

Total = 22 hydrogen

Explanation:

This is the skeletal formula for 2,3,3,5-tetramethylhexane - the 2D chemical structure. It is an organic compound. The carbon atoms in the structure are known as the carbon backbone. The hydrogen atoms are linked to the carbon backbone. This provides each carbon atom with four bonds.

Convert 840 mL to liters ( be sure to keep the appropriate number of significant figures - also, only enter a number DO NOT INCLUDE UNITS)

Answers

0.84. I think ... sorry if this is wrong!

A scientist is studying two types of worms. Worm X has DNA identical to its parent. Worm Y has a combination of DNA from two parents. The scientist determines that one of the worms has a survival advantage over the other worm. Which statement correctly summarizes this conclusion? Worm X reproduces asexually, which gives it genetic variation. Worm Y reproduces sexually, which gives it genetic variation. Worm Y reproduces asexually, which gives it more DNA. Worm X reproduces sexually, which gives it more DNA.

Answers

Answer:

2. Worm Y reproduces sexually, which gives it genetic variation.

Answer:

B      Worm Y reproduces sexually, which gives it genetic variation.

Explanation:

hope you all have a good day

Does the shape of molecule matter?​

Answers

Yes because it helps determine the properties the molecule has.

How many steps are there in the formation of a Solar System?
O Eight
O Four
O Ten
O Six
If ur a space nerd pls help

Answers

Answer:

6 steps

Explanation:

Answer:

6

Explanation:

I looked it up on Google. Hope this is right

which is the part of an experiment that serves as the point of comparison for the results

Answers

Answer:

the observation point.

Explanation:

after the experiment, you observe the data and comparing and write out formulas for the given data.

For a reaction Y → X with a very high equilibrium constant, K, which of the following is true? You can refer to the following two equations in formulating your answer.$$$$Choose one:A. The standard free-energy change is large and positive.B. The amount of product and substrate are equal at equilibrium.C. The forward reaction rate greatly exceeds the reverse reaction rate at equilibrium.D. The amount of product will be higher than the amount of substrate at equilibrium.

Answers

Answer:The amount of product will be higher than the amount of substrate at equilibrium

Explanation:

Recall that the equilibrium constant K depends on the amounts of reactants and products present in the system at equilibrium.

Considering the equation; K = [X]/[Y], as the concentration of X increases above that of Y, the equilibrium constant K becomes very high, hence the answer above.

How many moles of sodium sulfate are present in .100 g of the compound?
2.126 x 10^-3 mol
174.3 mol
7.040 x 10^-4 mol

Answers

Answer:

7.040 x 10^-4 mol

Explanation:

Atoms contain positively charged protons and negatively charged electrons. Why does an ordinary atom have no charge?

Answers

Atoms contain positively charged protons and negatively charged electrons. The atoms contain the same number of protons and electrons so the positively charged protons balance out the negatively charged electrons. Therefore, an atom is electrically neutral because it has no charge.

Which compound forms a powerful acid and contains a halogen

Answers

Answer:

B I already know this

Explanation:

N2(g) + 2H(g) -> N2 H4(g) What are the volumes of N2 gas and H2 gas required to form 28.5 grams of N2 H4 at 30'C and 1.50 atm?

Answers

Answer:

Volume of N₂ = 14.76 L

Volume of H₂ = 29.52 L

Explanation:

Given data:

Mass of N₂H₄ formed = 28.5 g

Pressure = 1.50 atm

Temperature = 30°C (30+273 = 303 k)

Volume of N₂ and H₂ needed = ?

Solution:

Chemical equation:

N₂ + 2H₂  →  N₂H₄

Number of moles of N₂H₄ formed = mass/ molar mass

Number of moles of N₂H₄ formed = 28.5 g/ 32 g/mol

Number of moles of N₂H₄ formed = 0.89 mol

Now we will compare the moles of N₂H₄ with N₂ and H₂ form balance chemical equation.

                N₂H₄                :                 N₂

                   1                     :                   1

                  0.89               :               0.89

                N₂H₄                :                 H₂

                   1                    :                  2

                 0.89               :                2×0.89 = 1.78 mol

Volume of H₂:

PV = nRT

1.50 atm × V = 1.78 mol × 0.0821 atm.L/mol.K × 303 K

V = 44.28atm.L /1.50 atm

V = 29.52 L

Volume of N₂:

PV = nRT

1.50 atm × V = 0.89 mol × 0.0821 atm.L/mol.K × 303 K

V = 22.14 atm.L /1.50 atm

V = 14.76 L

What is the volume mL of 2 degree celsius?

Answers

Answer:

Question not very specific, but here is an answer you might be looking for. Density of object at 2 degrees C, 0.99997 g/mL. Hope it IS the answer you are looking for!

Explanation:

5. What could you do to convert from meters to centimeters? *
A. There is no standard way to convert these units.
B. Leave the decimal in the same position.
C. Move the decimal to the right.
D. Move the decimal to the left.

Answers

C.

centi- is essentially 10^2 of one meter.

If you had 100m, multiplying 100 by 10^2 (or 100) would give you 10000 cm.

The answer is c . Don’t get mad at me if it’s wrong. Hoped I helped at least. Have s good day

which common substance is an acid?

Answers

Answer:

sulfuric acid, phosphoric acid, and nitric acid, citric acid

Explanation:

Sulfuric acid, nitric acid, citric acid, and phosphoric acid. Hope this helps :>

A type of emergency apparatus that can be used where oxygen may be limited or where the air might be poisoned is based on the following reaction in which CO2 produced by your own respiration reacts and O2 gas is produced. Calculate the mass of KO2 needed to produce 25 g of oxygen gas.

4 KO2(s) + 2 CO2(g)  2 K2CO3(s) + 3 O2 (g)

Answers

Answer:

so I don't know how to answer that

Determine the volume of 200 g of hydrogen gas.
​

Answers

Determine the volume of 200 g of hydrogen 2.22 kiloliters found it on a website when taking a test

CALCULATE SCIENTIFIC NOTATION (Add and Subtract)

1) 9 × 103 + 2.3 × 104



2) 15 × 102 + 5.2 × 105





3) 10 × 104 + 2.8 × 106





4) 7.0 × 103 + 8.6 × 104





5) 3.0 × 104 + 14.5 × 105





6) 8 x 104 – 2.7 x 102





7) 5.0 x 103 – 8.9 x 104





8) 7.0 x 103 – 8.20 x 102

Answers

Answer:

1. 1166.2

2. 2076

3. 1336. 8

4. 733.04

5. 1834.5

6. 556.6

7. - 410.6

8. 836.4

Explanation:

1.9 x 103 =928

Compounds have the same properties as the elements they are made up of. Is it true or false

Answers

Answer:

compounds have the same properties the elementary are false.

Why is Cobalt (Co) placed before Nickel (Ni) on the Periodic Table of the Elements even though it has a higher average atomic mass than nickel?



Nickel has fewer electrons.



Cobalt has a lower density.



Cobalt was discovered first.



Nickel has one more proton.

Answers

Answer: Nickel has one more proton.

Explanation:

The Periodic table orders elements based on their atomic number not by their atomic mass even though this order usually coincides with the atomic masses of the elements. Occasionally however, this is not the case as is proven by Cobalt and Nickel.

The atomic number of an element refers to the number of protons that the element has in its nucleus. Cobalt has 27 protons whilst Nickel has one more proton at 28 which is why it comes after Cobalt.

Answer:

lower density

Explanation:

which of the following is NOT a characteristic of minerals
A. Occur in gaseous and liquid state
B. Formed by inorganic processes
C. naturally occurring
D. definite chemical composition

Answers

Answer:

A. Occur in gaseous and liquid state

Explanation:

The choice that is not a characteristic of minerals is that minerals occur in gaseous and liquid state.

All minerals are solid inorganic compounds.

A mineral is an inorganic compound that is formed naturally. They have a definite and specific chemical composition. Minerals are the building blocks of rocks. When minerals aggregates together, they form different rock types. There is no known mineral that is in fluid state. All minerals are solids. Examples are quartz, kaolinite, gypsum e.t.c

Fran finds a dark-colored rock that she identifies as basalt. Which property gives the rock its dark color?
O its shape
O its banding
its grain size
O its mineral content

Answers

Answer:

Mineral Content.

Explanation:

shape has nothing to do with the color displayed.

Nor does the grain size.

I don't know what banding is. Whatever it is, it is not the answer.

D: mineral content.

Translate each number into standard notation
4.52 x 10 power3

Answers

Answer:

4.52×1000=4520

Explanation:

4.52*1000=4520

What happens when the compound NaCI is formed

Answers

Answer:

A. Sodium transfers an electron to chlorine. Sodium forms an ion with −1 charge and chlorine forms an ion with +1 charge

Explanation:

Where can you find most of Earth's liquid freshwater?

Answers

Answer:

Where can you find most of Earth's liquid freshwater?

Explanation:

Over 68 percent of the fresh water on Earth is found in icecaps and glaciers, and just over 30 percent is found in ground water. Only about 0.3 percent of our fresh water is found in the surface water of lakes, rivers, and swamps.

Hope that helped, i also have snap if you need me.

Over 68 per cent of the fresh water on Earth is found in icecaps and glaciers, and just over 30 per cent is found in groundwater. Only about 0.3 per cent of our freshwater is found in the surface water of lakes, and rivers.

What is the per cent of the water on this earth?

The Earth is a watery place. About 71 per cent of the Earth's surface is water-covered, and the oceans hold about 96.5 per cent of all Earth's water.

The majority of Earth’s fresh water is stored in underground aquifers.

Aquifers are layers of sedimentary formations such as sandstone and fractured hard rocks where water after infiltration from soil reaches and fill the interstitial spaces.

Aquifers are huge in size in basins and contain a huge amount of underground water of fresh quality.

So, over 68 per cent of the freshwater is present on Earth.

Learn more about the freshwater here:

https://brainly.com/question/4381433

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