Write the net ionic equation for the reaction that takes places between aqueous copper and nitrate.

Answers

Answer 1

Answer:

Cu+HNO3

Explanation:


Related Questions

Which one of the following combinations cannot function as a buffer solution?
A) HCN and KCN
B) NH3 and (NH4)2SO4
C) HNO3 and NaNO3
D) HF and NAF
E) HNO2 and NaNO2

Answers

Answer:

it is B

; )

Which one of the following combinations cannot function as a buffer solution?

A) HCN and KCN

B) NH3 and (NH4)2SO4

C) HNO3 and NaNO3

D) HF and NAF

E) HNO2 and NaNO2

Calculate the net force that thymine exerts on adenine. To keep the calculations fairly simple, yet reasonable, consider only the forces due to the O−H−N O − H − N and the N−H−N N − H − N combinations, assuming that these two combinations are parallel to each other. Remember, however, that in the O−H−N O − H − N set, the O− O − exerts a force on both the H+ H + and the N− N − , and likewise along the N−H−N N − H − N set.

Answers

Answer:

hello your question is incomplete and lacks the required figure  below is the missing part

The two sides of the DNA double helix are connected by pairs of bases (adenine, thymine, cytosine, and guanine). Because of the geometric shape of these molecules, adenine bonds with thymine and cytosine bonds with guanine shows the thymine adenine bond. Each charge shown is ±e, and the H−N distance is 0.110 nm

answer : net force due to O-H-N combination = -5.03354 * 10^-9 N

              net force due to N-H-N combination = -3.822 * 10^-9 N

              net force that the thymine exerts on adenine =  -8.8558 * 10^-9 N

Explanation:

considering only the forces due to O-H-N and N-H-N to determine the net force been exerted on adenine by thymine

we have to make some assumptions

we have to assume force towards thymine to be negative

Net force that thymine exerts on Adenine

= net force due to 0-H-N  + net force due to N-H-N

= ( -5.03354 * 10^-9 ) +  ( - 3.822 * 10 ^-9 )

=  -8.8558 * 10 ^-9 N

ATTACHED BELOW IS THE REMAINING PART OF THE SOLUTION

Explain why mass cannot be used as a property to identify a sample of matter.

Answers

Mass cannot be used as a property to identidy a sample of matter because it is an extensive property which depends on the amount of matter in a sample, not the tupe of matter it is.

Mass is an extensive property hence it cannot be used as a property to identify a sample of matter.

The properties of matter can generally be classed into two categories;

Intensive propertiesExtensive properties

Intensive properties of matter are those properties of matter that do not depend of the amount of matter present. In other words, they are characteristic of a particular kind of matter. Examples of such properties include, density, boiling point, etc.

Extensive properties depend on the amount of matter present. They include; mass, weight, etc.

Intensive properties serve as a sort of fingerprint that identifies a substance.

Extensive properties such as mass only measure the amount of matter in a sample and can not be used to identify a sample of matter.

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Cylinders of compressed gas are typically filled to a pressure of 200 bar. For oxygen, what would be the molar volume at this pressure and 25 °C based on (i) the perfect gas equation, (ii) the van der Waals equation? For oxygen, a = 1.364 dm6 atm mol−2, b = 3.19 × 10−2 dm3 mol−1.

Answers

Answer:

a

 [tex]V  =   0.124 \ Liters[/tex]

b

[tex]V  =  0.112 \  Liters[/tex]

Explanation:

From the question we are told that

  The pressure of compressed gas is [tex]P  =  200 \  bar = \frac{200}{1.013}=  197.4 \ atm[/tex]

  The  temperature is  [tex]T  =  25^oC =  25 + 273 = 298 \  K [/tex]

Generally the perfect gas equation is mathematically represented as

     [tex]PV =  nRT[/tex]

substituting 0.08206 L-atm/mol-K  for R and  1 mole for n

We have that

     [tex]V  =  \frac{1 *  0.08206 * 298 }{ 197.4}[/tex]

       [tex]V  =   0.124 \ Liters[/tex]

Generally the van der Waals equation is mathematically represented as

       [tex]nRT  =  [P + \frac{n^2 * a }{V^2 } ][V - nb][/tex]

=>[tex]1 *  0.08206 *298  =  [197.4 + \frac{1^2 *  1.364}{V^2 } ][V - 1 * 3.19 * 10^{-2}][/tex]

=>    [tex]V  =  0.112 \  Liters[/tex]

True or False:
Because the length, width and height of a cube are both
extensive properties, the volume of the cube is also an
extensive property.

Answers

Answer:

true

Explanation:

What is the mass of 5.80x10^23 atoms of silver

Answers

Answer:

5.80000000E+ 46...

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what is The pH and pOH of a 1.00x10-3M solution of CH3COOH (Ka=1.75x10-5) ?

Answers

Answer:

pH = 3.9pOH = 10.1

Explanation:

Since [tex]CH _ 3COOH[/tex] is a weak acid to find the pH of [tex]CH _ 3COOH[/tex] we use the formula

[tex]pH = - \frac{1}{2} log(Ka) - \frac{1}{2} log(c) [/tex]

where

Ka is the acid dissociation constant

c is the concentration

From the question

Ka of [tex]CH _ 3COOH[/tex] = 1.75 × 10^-5

c = 1.00 × 10-³M

Substitute the values into the above formula and solve for the pH

That's

[tex]pH = \frac{1}{2} ( - log(1.75 \times {10 }^{ - 5} - log(1.00 \times {10}^{ - 3} ) ) \\ = \frac{1}{2} (4.757 + 3) \\ = \frac{1}{2} \times 7.757) \\ = 3.8785 \: \: \: \: \: \: \: \: [/tex]

We have the answer as

pH = 3.9

To find the pOH we use the formula

pH + pOH = 14

pOH = 14 - pH

pOH = 14 - 3.9

We have the answer as

pOH = 10.1

Hope this helps you

What is a relief in relation to topography ?

Answers

Answer:

Relief is typically defined as the difference in height between the high point and the low point on a landscape, in feet or in meters.

Explanation:

Answer:

Relief is the difference in elevation between two points. It is easily calculated by subtracting the lowest elevation from the highest elevation in an area.

Explanation:

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what is the name of the element that has electrons arranged
2,8,2 ​

Answers

Answer:

The metal element → Magnesium (Mg)

Answer:

magnesium

Explanation:

magnesium has electrons arranged 2,8,2

Compare the components that make up the windsurfer, his board, and his surroundings.

Answers

Answer:

The windsurfer, his board, and the air and water around him are all made of matter. That matter is made up of very small particles called atoms.

Explanation:

The windsurfer, the board, and the surroundings are all components involved in the activity of windsurfing. Let's compare them:

1. Windsurfer: The windsurfer is the person engaging in the sport. They are responsible for controlling the board and maneuvering through the water using the sail. The windsurfer's skills, balance, and physical abilities play a crucial role in their performance.

2. Board: The windsurfing board is the equipment used by the windsurfer. It typically consists of a long, narrow board with a fin at the bottom for stability and control. The board is designed to float on the water and provide a platform for the windsurfer to stand on.

3. Surroundings: The surroundings refer to the environment in which windsurfing takes place, which is usually a body of water such as a lake, river, or ocean. The condition of the water, including its temperature, depth, and currents, can affect the windsurfer's experience and performance.

In summary, the windsurfer, the board, and the surroundings are interconnected components of the windsurfing experience.

The skills and physical abilities of the windsurfer, the design and performance of the board, and the characteristics of the surrounding environment all contribute to the overall enjoyment and success of the activity.

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Draw the structure of aspirin acid and conjugate base.

Answers

Answer:

Aspirin = acetylsalicyclic acid

Its conjugate base = acetylsalicyclate

Note: See the attachment below for structures.

Explanation:

Aspirin, also known as acetylsalicyclic acid is derived from the acetylation of salicyclic acid at carbon-2. It is used as a medication in the treatment of pain, fever and inflammation.

It is grouped under the class of non-steroidal anti-inflammatory drugs (NSAIDs), which are a class of drugs that in addition to anti-inflammatory actions,  have analgesic, antipyretic, and platelet-inhibitory actions.

Its conjugate base, acetylsalicyclate is obtained from the deprotonation of the carboxylic acid group, -COOH.

Select the correct answer.
A bicycle traveled 150 meters west from point A to point B. Then it took the same route and came back to point A. It took a total of 2 minutes for
the bicycle to return to point A. What is the average speed and average velocity of the bicycle?
ОА.
The average speed is 2.5 meters/second, and the average velocity is
2.5 meters/second east.
OB
The average speed is O meters/second, and the average velocity is
2.5 meters/second east.
Ос.
The average speed and average velocity are both O meters/second.
OD. The average speed is 2.5 meters/second, and the average velocity is
O meters/second.

Answers

I believe the correct answer is B

A 3.31-g sample of lead nitrate, Pb(NO3)2, molar mass = 331 g/mol, is heated in an evacuated cylinder with a volume of 2.53 L. The salt decomposes when heated, according to the equation:
2Pb(NO3)2(s)-->2PbO(s) + 4NO2(g) + O2(g)
Assuming complete decomposition, what is the pressure in the cylinder after decomposition and cooling to a temperature of 300. K? Assume the PbO(s) takes up negligible volume.

Answers

Answer:

0.486atm is the pressure of the cylinder

Explanation:

1 mole of Pb(NO₃)₂ descomposes in 4 moles of NO2 and 1 mole of O2. That is 1 mole descomposes in 5 moles of gas.

To find the pressure of the cylinder, we need to find moles of gas produced, and using general gas law we can determine the pressure of the gas:

Moles Pb(NO₃)₂ and moles of gas:

3.31g * (1mol / 331g) = 0.01 moles of Pb(NO₃)₂.

That means moles of gas produced is 0.05 moles.

Pressure of the gas:

Using PV = nRT

P = nRT/V

Where P is pressure (Incognite)

V is volume (2.53L)

R is gas constant (0.082atmL/molK)

T is absolute temperature (300K)

And n are moles of gas (0.05 moles)

P = 0.05mol*0.082atmL/molK*300K / 2.53L

P = 0.486atm is the pressure of the cylinder

What is the equation that describes the relationship of force, mass, and acceleration?

Answers

Answer:

f=ma

Explanation:

Force is measured in newtons btw

What is the purpose of Oxidation?

Answers

Oxidation is when molecules r removed of hydrogen or combination with oxygen normally liberates large quantities of energy.
Oxidation is used in a wide variety of industries such as in the production of cleaning products and oxidizing ammonia to produce nitric acid, which is used in most fertilizers. Redox reactions are the foundation of electrochemical cells, which can generate electrical energy or support electrosynthesis.

QUESTION 17
If the theoretical yield of the following reaction is 3.43g of MgO and the actual yield is 2.48g of Mgo, what is the percent yield?
O 1.38%
O 72.3%
O 0.723%
138%

Answers

Answer:

72.3%

Explanation:

The following data were obtained from the question:

Theoretical yield of MgO = 3.43 g

Actual yield of MgO = 2.48g

Percentage yield of MgO =.?

Percentage yield of a reaction can simply be obtained by dividing the actual yield by the theoretical yield multiplied by 100. This is illustrated below:

Percentage yield = Actual yield /Theoretical yield × 100

Thus, we can obtain the percentage yield of MgO as follow:

Theoretical yield of MgO = 3.43 g

Actual yield of MgO = 2.48g

Percentage yield of MgO =.? Percentage yield = Actual yield /Theoretical yield × 100

Percentage yield = 2.48/3.43 × 100

Percentage yield = 72.3%

Therefore, the percentage yield of MgO is 72.3%.

Describe the size and scale of an atom. Explain the relative of the nucleus in relation to the size of an entire atom.

Answers

Size of an atom:

Diameter is 10^-10

Size of a nucleus:

Diameter 10^-15

As you can see, the nucleus is significantly smaller than the atom which is quite superb if you ask me. An atom is the smallest particle that can create a chemical composition.

Best of Luck!

if you add sugar to water and the sugar no longer dissolves and it settles at the bottom the solution has become

Answers

Answer:

It forms a solution.

Explanation:

A pure substance is when only one type of atom or molecule is present. In this case the substance contains two different molecules; sugar and water, assuming sugar is all one type (e.g. glucose) and there are no contaminants in the water or sugar before combining the two.

Dissolving the sugar in the water makes a homogeneous mixture and once dissolved a solution is made by the combination of a solute (sugar) and solvent (water).

Hope this helps!!!!

Skepticism _____. means not having an open mind is the belief that knowledge is not certain is a quality scientists should not have keeps scientists from making new discoveries

Answers

Answer:

(C) is the belief that knowledge is not certain.

Explanation: I would say it’s (C) because Most scientist or empirical skeptic is one who questions beliefs on the basis of scientific understanding and empirical evidence. Scientific skepticism may discard beliefs pertaining to purported phenomena not subject to reliable observation and thus not systematic or testable empirically.

Answer:

(C) is the belief that knowledge is not certain.

Explanation:

1/2-life of pyruvic acid in the presence of aminotransferase enzyme (which converts it to alanine) was found to be 221 s. how long will it take for the concentration of pyruvic acid to fall to 1/64 of its initial value in this first order reaction?

Answers

Answer:

After 1326s, the concentration of pyruvic acid fall to 1/64 of its initial concentration.

Explanation:

The first order kinetics reaction is:

ln [A] = ln [A]₀ - kt

Where [A] is concentration after t time, [A]₀ is intial concentration and k is reaction constant.

To convert half-life to k you must use:

t(1/2) = ln 2 / K

221s = ln 2 / K

K = ln 2 / 221s

K = 3.1364x10⁻³s⁻¹

If [A] = 1/64, [A]₀ = 1:

ln [A] = ln [A]₀ - kt

ln (1/64) = ln 1 - 3.1364x10⁻³t

4.1588 = 3.1364x10⁻³s⁻¹t

1326s = t

After 1326s, the concentration of pyruvic acid fall to 1/64 of its initial concentration.

The time takes for the concentration of pyruvic acid to fall to 1/64 of its initial value in this first order reaction 1326s.

How we calculate time?

Time will be calculated by using the first order kinetics equation as:

ln [A] = ln [A]₀ - kt, where

[A] = final concentration = 1/64

[A]₀ = initial concentration = 1

t = required time

k is the rate constant and will be calculated by using the half life duration 221s as:

t(1/2) = ln2 / k

221s = ln2 / k

k = ln2 / 221s = 3.1364x10⁻³ per sec

Now putting all these values on the above equation, we get

ln (1/64) = ln 1 - 3.1364x10⁻³t

4.1588 = 3.1364x10⁻³s⁻¹t

1326s = t

Hence, required time is 1326s.

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Most people use the _____ for intercity travel

Answers

if your options are
train
subway system
domestic airports
private bus system

the correct answer is private bus system

Answer:

The person at the top said the right answer I checked

Use the arrangement of particles in solids and gases to explain why solids are not as easy to compress as gases.

Answers

Answer:

The strong forces of attraction between the particles stop the particles from moving around each other and making the solid flow. The particles are close together so they need to be compressed hard to get them closer.

Explanation:

In solids, strong forces of attraction holds the particles together in a three-dimensional structure. The particles form an orderly arrangements called Lattice.

solids particles are all very close together that they’re touching. gasses particles are just floating around not touching

Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A 100-mL graduated cylinder with an inside diameter of 3.16 cm contains 34.6 g of heptane and 34.0 g of water. What is the combined height of the two liquid layers in the cylinder? The volume of a cylinder is π r2h, where r is the radius and h is the height.

Answers

Answer:

[tex]h=100.8cm[/tex]

Explanation:

Hello,

In this case, considering the density and mass of both water and heptane we first compute the volume of each one:

[tex]V_{water}=\frac{m_{water}}{\rho _{water}}=\frac{34g}{1.00g/mL}=34mL\\ \\V_{heptane}=\frac{m_{heptane}}{\rho _{heptane}}=\frac{34.6g}{0.684g/mL}=50.6mL\\[/tex]

Now, the total volume is:

[tex]V=50.6mL+34mL=84.6mL[/tex]

Which is equal to:

[tex]V=84.6cm^3[/tex]

Then, by knowing that the volume of a cylinder is πr²h or π(D/2)²h, we solve for the height as follows:

[tex]h=\frac{V}{\pi (D/2)^2} \\\\h=\frac{84.6cm^3}{\pi (3.16cm/2)^2} \\\\h=100.8cm[/tex]

Best regards.

Which Of The Following Monosaccharides Is Not An Aldose? A) Crythrose B) Fructose C) Glucose D) Glyceraldehyde E) Iribose

Answers

A) Crythrose is not an Aldiss

Fructose monosaccharides is not an aldose sugar. Hence option B is correct.

What is Monosaccharide?

Monosaccharide is a simplest form of sugar that is not decompose in simple sugars by hydrolysis and it contains one or more hydroxyl groups.

Types of sugars Aldose and ketose (which are named on the basis of presence of functional groups aldehyde and ketone).

Aldose is a monosaccharide contains carbon chain with carbonyl group in endmost carbon atom.

Erythrose, glucose, glyceraldehyde and ribose contain aldehyde as a functional group so these are example of aldose where as fructose contains a ketone group so it is a ketose not an aldose.

Fructose monosaccharides is not an aldose sugar. Hence option B is correct.

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What makes up nearly all of the atom's mass?
A. The sum of all protons and neutrons
B. The sum of all neutrons and electrons
C. The sum of all protons and electrons
D. The sum of all isotopes
SUBMIT

Answers

Answer:

a. the sum of all protons and neutrons

A the sum of all protons and neutron

Question 3. Which of these best describes the field of engineering? *
Please help

Answers

Wait where are the options? Comment me back the options so I can help you

is Crystallizing sodium Acetate a physical or chemical change

Answers

Answer: physical please let me know if its wrong !

10. A small gold nugget has volume of 0.87 cm3. What is its mass if the density of gold is 19.3 g/cm3?

Answers

Answer:

16.791 grams

Explanation:

The density formula is:

[tex]d=\frac{m}{v}[/tex]

Rearrange the formula for m, the mass. Multiply both sides of the equation by v.

[tex]d*v=\frac{m}{v}*v[/tex]

[tex]d*v=m[/tex]

The mass of the gold nugget can be found by multiplying the density and volume. The density is 19.3 grams per cubic centimeter and the volume is 0.87 cubic centimeters.

[tex]d= 19.3 g/cm^3\\v-0.87 cm^3[/tex]

Substitute the values into the formula.

[tex]m=d*v[/tex]

[tex]m= 19.3 g/cm^3*0.87 cm^3[/tex]

Multiply. Note that the cubic centimeters, or cm³ will cancel each other out.

[tex]m=19.3 g*0.87[/tex]

[tex]m=16.791 g[/tex]

The mass of the gold nugget is 16.791 grams.

What is the difference between an element and a compound?

A. An element is a pure substance, a compound is a mixture.

B. An element is more than one type of atom, a compound is a single type of atom.

C. An element is one type of atom, a compound is more than one type in mixed composition.

D. An element is one type of atom, a compound is more than one type bonded together.

Answers

D. Would be the correct answer :)
D.
im not completely sure but i did the process of elimination. it’s not B because an element is one type of atom. it’s not A because both elements and compounds are pure substances. and it’s not C because it’s not in mixed composition

What are the conjugate acid-base pairs in the reaction of H2SeO4 with H2O?H2SeO4+H2O→products

Answers

Answer:

Conjugate acid- H2SeO4

Conjugate base- H2O

Explanation:

The full equation of the reaction is; H2SeO4(aq) + H2O(aq)-->H3O^+( aq) + HSeO4^-(aq).

The conjugate acid is the specie that donates a proton to the conjugate base, hence H2SeO4 is the conjugate acid while H2O is the conjugate base because it accepts a proton from H2SeO4, hence the answer above.

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