Aqueous copper (II) sulfate reacts with aqueous potassium fluoride to produce
a precipitate of copper (II) phosphate and aqueous potassium sulfate.

Answers

Answer 1

Answer:

CuSO₄(aq) + 2 KF(aq) = CuF₂ + K₂SO₄

Explanation:

The question is missing but I think it must be about writing and balancing the equation.

Let's consider the unbalanced equation for the reaction that occurs when aqueous copper (II) sulfate reacts with aqueous potassium fluoride to produce  a precipitate of copper (II) fluoride (I fixed a mistake here) and aqueous potassium sulfate. This is a double displacement reaction.

CuSO₄(aq) + KF(aq) = CuF₂ + K₂SO₄

Since only K and F atoms are not balanced, we will get the balanced equation by multiplying KF by 2.

CuSO₄(aq) + 2 KF(aq) = CuF₂ + K₂SO₄


Related Questions

Which type of cell can have a flagellum or cilia

Answers

Answer:

Both prokaryotic and eukaryotic cells contain structures known as cilia and flagella. These extensions from the cell surface aid in cell movement. They also help to move substances around cells and direct the flow of substances along tracts. Cilia and flagella are formed from specialized groupings of microtubules called basal bodies.

Explanation:

Ca and F what are the name of the ionic compounds

Answers

Answer:

Calcium flouride?

Explanation:

Quite self explanatory

11. The modern periodic table is arranged in order of increasing atomic
O radius
O charge
O number
O mass

Answers

Answer:

number. so the option is c

Answer:

atomic number

Explanation:

i just know it

Where is the arctic tundra biome found?

Use this website to answer the question: https://thewildclassroom.com/biomes/artictundra-2/

Question 2 options:

Almost entirely in the Northern Hemisphere, from 60 to 70 degrees latitude North.


In tropical and subtropical latitudes


In high altitudes


Within tropical and subtropical latitudes

Answers

Answer:

In high altitudes

Explanation:

hope it helps you

The artic tundra biome is found in high altitudes.

What is arctic tundra biome?

Artic tundra biome is the northernmost biome, which covers the land of the arctics with the ice caps.

Climate of this Artic tundra biome is almost cold means the temperature in winter season of this region is about -34 degree celsius and temperature in summer season of this region is about 3 - 12 degree celsius. And it observed generalyy on the northen side.

Hence correct option is (C).

To know more about Artic tundra biome, visit the below link:

https://brainly.com/question/4125133

Plz help me!!!!plzzz!

Answers

Answer:

A

Explanation:

Since the new moon is behind the earth, It is sun, earth, moon

Water decomposes to hydrogen and oxygen gas as shown in
the following reaction:
2H20 (g) → 2H2 (g) + O2 (g)
Given a 6.80 g sample of H20 (MM = 18.0 g/mol), how many
grams of oxygen (MM = 32.0 g/mol) is produced, assuming the
decomposition goes to completion?

Answers

Answer:

6.04 g O2

Explanation:

6.80 g H2O x (1 mol/18.0 g) x (1 O2/2 H2O) x (32.0 g/1 mol) = 6.04 mol O2

Please someone help I’m really confused

Answers

Answer:10-3

Explanation:

Draw a mechanism for the reaction of methanol with sodium amide. Draw any necessary curved arrows. Show the products of the reaction. Include any nonzero formal charges and all lone pairs of electrons. Finally, choose one of the options below to indicate which side of the reaction is favored at equilibrium.
a) Reactants favored
b) Products favored
c) Neither side favored

Answers

Answer:

Please find equations in the attachment file.  

Explanation:

Aspirin can be prepared from salicylic acid ( C 7 H 6 O 3 CX7HX6OX3), which has a molar mass of 138.12 g/mol, and acetic anhydride ( C 4 H 6 O 3 CX4HX6OX3), which has a molar mass of 102.04 g/mol. The density of acetic anhydride is 1.082 g/mL. C 7 H 6 O 3 + C 4 H 6 O 3 ⟶ C 9 H 8 O 4 + C 2 H 3 O 2 CX7HX6OX3+CX4HX6OX3⟶CX9HX8OX4+CX2HX3OX2 What is the theoretical yield, in grams, of aspirin ( C 9 H 8 O 4 CX9HX8OX4), which has a molar mass of 180.15 g/mol, possible when reacting 3.20 g of salicylic acid with 3.71 mL of acetic anhydride? Type answer:

Answers

Answer: The theoretical yield of aspirin is 4.14 g

Explanation:

To calculate the moles :

[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]  [tex]\text{Moles of salicylic acid}=\frac{3.20g}{138.12g/mol}=0.023moles[/tex]

mass of acetic anhydride = [tex]density\times volume =1.082g/ml\times 3.71ml=4.01g[/tex]

[tex]\text{Moles of acetic anhydride}=\frac{4.01g}{102.04g/mol}=0.039moles[/tex]

[tex]C_9H_6O_3+C_4H_6O_3\rightarrow C_9H_8O_4+C_2H_3O_2[/tex]  

According to stoichiometry :

1 mole of salycylic acid require 1 mole of acetic anhydride

Thus 0.023 moles of  salycylic acid require=[tex]\frac{1}{1}\times 0.023=0.023moles[/tex]  of acetic anhydride

Thus salycylic acid is the limiting reagent as it limits the formation of product and acetic anhydride is the excess reagent.

As 1 mole of salycylic give = 1 mole of aspirin

Thus 0.023 moles of salycylic acid give =[tex]\frac{1}{1}\times 0.023=0.023moles[/tex]  of aspirin

Mass of aspirin = [tex]moles\times {\text {Molar mass}}=0.023moles\times 180.15g/mol=4.14g[/tex]

Thus theoretical yield of aspirin is 4.14 g

William Rankine coined this energy from

A. Mechanical energy
B. Kinetic energy
C. Potential Energy
D. Total energy
E. Chemical Energy

Answers

Answer:

C.Potential Energy

Explanation:

A hydrogen fuel cell is an electrochemical reactor in which oxygen and hydrogen gas are reacted to produce energy. Rather than combusting hydrogen in the presence of oxygen, the overall reaction (1/2) O2 H2 → H2O is actually carried out as two `half-reactions’ occurring at separate electrodes. To complete the reaction, this forces electrons to pass through an external circuit from one electrode to the other, and this current can be used to do work; e.g., by driving a motor. Typical operating conditions for a solid-oxide fuel cell are 500-900 C and 5-15 bar. Consider a fuel cell in which a pure oxygen stream and a pure hydrogen stream enter at 11 bar and 700 C with stoichiometric flowrates. Assume that these reactants are consumed completely, and that the water generated by the reaction leaves in a third stream at the same T and P. Assume that the fuel cell operates at steady-state with a uniform temperature of 700 C. a) Write simplified first and

Answers

Answer:

(d) Why is the fuel cell in Question (c) described as an alkaline fuel cell? (e) Another type of fuel cell uses methanol instead of hydrogen.

Explanation:

6. If 4 grams of salt is dissolved in 79 grams of water, what is the total mass of the final solution? [1 mark]
a) 83g
b)4g
c) 79g
d) 81g

Answers

Answer:

A) 83g

Explanation:

Answer:

mass of solution=mass of solute+mass of solvent

=4+79

. =83g

what charge does nitrogen have

Answers

Answer:

3-

Explanation:

what plate boundary typically causes earthquakes

Answers

Answer:

Convergent Plate Boundaries

Explanation:

I hope this helps :)

Convergent Boundaries.

PLEASE ANSWER!!!!!!!!
Scientists observe the polyatomic ion nitrate forming a compound with unknown element 'A' and predict that the chemical formula could be A2NO3. One of the scientists, Nadeen, states that this chemical formula would be impossible. Is Nadeen correct? Explain why or why not.

Answers

Answer:

knflnvwlknnffenfkw

Explanation:

What is the volume of 40.0 grams of argon gas at STP ?

Answers

Answer:

24.9 L Ar

General Formulas and Concepts:

Atomic Structure

Reading a Periodic TableMolesSTP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 K

Aqueous Solutions

States of Matter

Stoichiometry

Using Dimensional Analysis

Explanation:

Step 1: Define

[Given] 40.0 g Ar

[Solve] L Ar

Step 2: Identify Conversions

[PT] Molar Mass of Ar - 39.95 g/mol

[STP] 22.4 L = 1 mol

Step 3: Convert

[DA] Set up:                                                                                                       [tex]\displaystyle 40.0 \ g \ Ar(\frac{1 \ mol \ Ar}{39.95 \ g \ Ar})(\frac{22.4 \ L \ Ar}{1 \ mol \ Ar})[/tex][DA] Divide/Multiply [Cancel out units]:                                                         [tex]\displaystyle 24.9235 \ L \ Ar[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

24.9235 L Ar ≈ 24.9 L Ar

N 2H 4 + H202 N2 + H 20​

Answers

Answer:

N2 + H20

Explanation:

chemical equation balancer

Due today!
If you weigh 200 lbs on Mars how much would you weigh on Earth

Answers

Answer:

75.88 pounds (or 75 pounds and 14 ounces.)

Which of the following is a period 4 representative element?
A. C
B. An
C. Ti
D. K



Answers

[tex]\huge{\mathbb{\tt { QUESTION↓}}}[/tex]

Which of the following is a period 4 representative element?

O A. C

O B. An

O C. Ti

O D. K

[tex]\huge{\mathbb{\tt {ANSWER↓}}}[/tex]

[tex]\color{blue}{\tt {A.C ( Carbon )}}[/tex]

[tex]{\boxed{\boxed{\tt { WHAT \: IS \: CARBON?}}}}[/tex]

Carbon (from Latin: carbo "coal") is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalen - making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025 percent of Earth's crust.

#CarryOnLearning

#LetsEnjoyTheSummer

→XxKim02xX

The dropping off of sediments in a new place is called

Answers

The movement of sediments by wind, water, ice, or gravity is called erosion. Sediments are dropped in a new location. The process of dropping sediments in a new location is called deposition. Some of the small pieces are deposited on the ocean floor

Hope that helps :)
The movement of sediments by wind, water, ice, or gravity is called erosion. Sediments are dropped in a new location. The process of dropping sediments in a new location is called deposition.

Describe Muller's Ratchet.

Answers

Answer:

Muller's ratchet is a paradigmatic model in population genetics which describes the fixation of a deleterious mutation in a population of finite size due to an unfortunate stochastic fluctuation.

Explanation:

Answer:

Muller's ratchet is a paradigmatic model in population genetics which describes the fixation of a deleterious mutation in a population of finite size due to an unfortunate stochastic fluctuation.

Explanation:

This is the correct answer took a test and got this correct thank you to the original user above.

The first three half live of a chemical 2 / 2 reaction are as follows 44 min, 22 min, 11 min. What is the order the reaction?

Answers

Second-order reaction because the half-life for the reaction gets shorter and shorter.

Complete the following sentence by choosing the best answer:
Waves transfer ____.
a. particles
b. energy
с. light
d. matter

Answers

Answer: it is b give braineless

Explanation:

You have 2.2 mol Xe and 2.1 mol F2, but when you carry out the
reaction you end up with only 0.25 mol XeFg. What is the percent
yield of this experiment?
Xe(g) + 2 F2 (g) XeF, (g)

Answers

Answer:

Percentage yield = 23.8%

Explanation:

We'll begin by determining the limiting reactant. This can be obtained as follow:

Xe(g) + 2F₂(g) —> XeF₄

From the balanced equation above,

1 mole of Xe reacted with 2 moles of F₂.

Therefore, 2.2 moles of Xe will react with = 2.2 × 2 = 4.4 moles of F₂.

From the above calculation, we can see that a higher amount (i.e 4.4 moles) of F₂ than what was given (i.e 2.1 moles) is needed to react completely with 2.2 moles Xe.

Therefore, F₂ is the limiting reactant and Xe is the excess reactant.

Next, we shall determine the theoretical yield of XeF₄.

This can be obtained by using the limiting reactant as follow:

From the balanced equation above,

2 moles of F₂ reacted to produce 1 mole of XeF₄.

Therefore, 2.1 moles of F₂ will react to produce = (2.1 × 1)/2 = 1.05 moles of XeF₄.

Thus, the theoretical yield of XeF₄ is 1.05 moles.

Finally, we shall determine the percentage yield. This can be obtained as follow:

Actual yield of XeF₄ = 0.25 mole

Theoretical yield of XeF₄ = 1.05 moles

Percentage yield =?

Percentage yield = Actual yield / Theoretical yield × 100

Percentage yield = 0.25 / 1.05 × 100

Percentage yield = 0.238 × 100

Percentage yield = 23.8%

Determine how many molecules are in 86L of carbon dioxide at STP?

Answers

Answer:How can you tell how much gas is in these containers?

Small gas tanks are often used to supply gases for chemistry reactions.  A gas gauge will give some information about how much is in the tank, but quantitative estimates are needed so the reaction will be able to proceed to completion.  Knowing how to calculate needed parameters for gases is very helpful to avoid running out too early.

Conversions Between Moles and Gas Volume

Molar volume at STP can be used to convert from moles to gas volume and from gas volume to moles.  The equality of 1 mole = 22.4 L is the basis for the conversion factor.

Sample Problem One: Converting Gas Volume to Moles

Many metals react with acids to produce hydrogen gas.  A certain reaction produces 86.5 L of hydrogen gas at STP.  How many moles of hydrogen were produced?

Step 1: List the known quantities and plan the problem.

Known

86.5 L H2

1 mol = 22.4 L

Unknown

moles of H2

Apply a conversion factor to convert from liters to moles.

Step 2: Calculate.

Explanation:

A mixture of 65 percent N2 and 35 percent CO2 gases (on a mass basis) enters the nozzle of a turbojet engine at 60 psia and 1400 R with a low velocity, and it expands to a pressure of 12 psia. If the isentropic efficiency of the nozzle is 88 percent, determine:
(a) the exit temperature
(b) the exit velocity of the mixture.
Assume constant specific heats at room temperature.

Answers

Answer:

a. 969.1 R

b. 2237 ft/s

Explanation:

First the apparent specific heats are determined from the mass fractions of the gases:

[tex]c_{p} &=\left(\mathrm{mf} c_{p}\right)_{\mathrm{N}_{2}}+\left(\mathrm{mf} c_{p}\right) \mathrm{CO}_{2} \\ &=(0.65 \cdot 0.248+0.35 \cdot 0.203) \frac{\mathrm{Btu}}{\mathrm{lbm} \mathrm{R}} \\ &=0.232 \frac{\mathrm{Btu}}{\mathrm{lbmR}} \\ c_{v} &=\left(\mathrm{mf} c_{v}\right)_{\mathrm{N}_{2}}+\left(\mathrm{mf} c_{v}\right)_{\mathrm{CO}_{2}} \\ &=(0.65 \cdot 0.177+0.35 \cdot 0.158) \frac{\mathrm{Btu}}{\mathrm{lbmR}} \\ &=0.170 \frac{\mathrm{Btu}}{\mathrm{lbmR}}[/tex]

The isentropic coefficient then is:

[tex]k &=\frac{c_{p}}{c_{v}} \\ &=\frac{0.232}{0.17} \\ &=1.365[/tex]

The final temperature is determined from the isentropic nozzle efficiency relation:

[tex]T_{2} &=T_{1}-\eta_{N}\left(T_{1}-T_{2 s}\right) \\ &=T_{1}\left(1-\eta_{N}\left(1-\left(\frac{P_{2}}{P_{1}}\right)^{(k-1) / k}\right)\right) \\ &=1400\left(1-0.88\left(1-\left(\frac{800}{100}\right)^{(1.365-1) / 1.365}\right)\right) \mathrm{R} \\ &=969.1 \mathrm{R}[/tex]

b. The outlet velocity is determined from the energy balance:

[tex]h_{1} &+\frac{v_{1}^{2}}{2}=h_{2}+\frac{v_{2}^{2}}{2} \\ v_{2} &=\sqrt{2 c_{p}\left(T_{1}-T_{2}\right)} \\ &=\sqrt{2 \cdot 0.232(1400-969.2) \cdot 25037} \frac{\mathrm{ft}}{\mathrm{s}} \\ &=2237 \frac{\mathrm{ft}}{\mathrm{s}}[/tex]

b) Name three substances which can undergo sublimation and deposition respectively​

Answers

solid carbon dioxide, iodine, arsenic, and naphthalene

Explanation:

Examples of substances that undergo sublimation

Examples of solids that sublime are dry ice (solid carbon dioxide), iodine, arsenic, and naphthalene (the stuff mothballs are made of).

What Mass of glucose is
needed to prepare 235mL of 22% w/v glucose?

Answers

Answer: 8 grams of glucose are needed to prepare 400. ml of a 2.0%(m/v) glucose solution. 8 grams of glucose are needed to prepare 400.Oct 6, 2017

Answer:

8 grams of glucose are needed to prepare 400. ml of a 2.0%(m/v) glucose solution. 8 grams of glucose are needed to prepare 400

Explanation:

An object was measured by a worker as
15.9cm long, however, the manufacturer
specifications list the length of the object at
15.8cm. What is the percent error in the
workers measurement?

Answers

Answer:.633

Explanation:

I have know idea but it was right

Answer:

O.633%

Explanation:

For all those Acellus kids XD

Select the correct answer.
For Al, its atomic number is 13 and its mass number is 27. How many neutrons does it have?
Ο Α. .
13
ОВ.
14
26
OD
27
O E
40

Answers

Answer:

B.) 14

Explanation:

27-13=14 neutrons

Other Questions
Suppose that an investor wants to compare the risks associated with two different stocks. One way to measure the risk of a given stock is to measure the variation in the stocks daily price changes. The investor obtains a random sample of 25 daily price changes for stock 1 and 25 daily price changes for stock 2. These data are provided in the file P09_20.xlsx. Explain why this investor can compare the risks associated with the two stocks by testing the null hypothesis that the variances of the stocks price changes are equal.A hypothesis test for equal population variances is appropriate because the two stock price changes can be assumed independent from each other.Perform this test, using a 10% significance level, and interpret the results. Round your answer for p-value to three decimal places, if necessary.With a p-value of 0.022 , we reject the null hypothesis of equal variance. There is enough evidence to support the claim that the two stock prices do not have the same risk. The letters in the diagram below represent genes on a particular chromosome.Gene B contains the code for an enzyme that cannot be synthesized unless gene A is also active. Which statement best explains why this can occur?(1) A hereditary trait can be determined by more than one gene.(2) Genes are made up of double-stranded segments of DNA.(3) All the genes on a chromosome act to produce a single trait.(4) The first gene on each chromosome controls all the other genes on the chromosome. what does brock discover about the world outside the doom in the story the last dog How do you factor a mortgage payment? but there's no sense crying over every mistake,you just keep on trying till you run out of cake,and the science gets done,and you make a neat gun,for the people who are still alive. What 4 factors do bacteria need to grow? Which two statements provide explicit textual evidence to support Stefanis inference? A. statements 1 and 3 B. statements 2 and 4 C. statements 4 and 5 D. statements 5 and 6 What is a sensory phrase? But I didn't hear you. If I had heard you, I (would have done, will do, would do, will have done) it. 3 pencils cost 2.25.How much do 7 pencils cost? What goip i hared about Winterbourne with the reader? He ha lot mot of hi fortune to gambling. Hi "aunt" with whom he ha a cloe relationhip i not actually hi aunt. He wa engaged in a romantic tryt with an older woman. He ha a habit of taking advantage of young girl Explain and define the term ""Metropolitan IT Infrastructure."" What are some key city infrastructures? Explain the concept of a Smart City. Why did the United States establish the NATO alliance ? After president johnson established the national advisory commission on civil disorders to help eliminate unrest in inner cities, why were none of the commissions recommendations put into practice? a. johnson didnt agree with the recommendations. b. all of the recommendations cost too much money. c. johnson was too focused on the vietnam war. d. johnson thought the problems would solve themselves. Why does the US have multiple time zones? Find the arithmetic sequence for -16,-21,-26,-31Show steps please! Is the controlling idea the theme? Refer to Exhibit 3-3. A movement from point W to point Z would have been the result ofa reduction in the price of good Y.an increase in the number of buyers in the area where good Y is being sold.a decrease in business taxes paid by the producers of good Y.a decrease in the number of buyers in the area where good Y is being sold.an increase in the price of good Y. What is the difference between a rhyming poem and a free verse poem? What is the percent composition of a compound formed when 4.96 g of bromine combines with lithium to form 5.39 g of lithium bromide?