Which hybrid orbitals overlap to form the sigma bonds between the indicated atoms in xanthine?

Answers

Answer 1

Many nitrogen and carbon atoms can be found in the structure of a heterocyclic molecule called xanthine, which is present in many biological systems.

The development of a sigma bond between these atoms is an essential component of its binding. A special example is the sigma bond between the nitrogen atom and the neighboring carbon atom. In the context of this sigma bond, the hybridization state of nitrogen can be either [tex]\rm sp^2[/tex]or [tex]\rm sp^3[/tex], and the hybridization state of carbon can be [tex]\rm sp^3[/tex]. A sigma bond is formed when the hybrid orbitals of carbon and nitrogen, which are each [tex]\rm sp^2[/tex] hybridized and [tex]\rm sp^3[/tex] hybridized, overlap. A strong covalent bond can develop when the [tex]\rm sp^2[/tex] hybrid orbitals of nitrogen and carbon line up. This allows electron sharing.

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Related Questions

ANSWER ASAP
PLeAsE
?????????????

Answers

Answer:

The answer is A.) leaving a copper penny in vinegar until it turns green.

All the other options are physical changes, as you can separate the two mixtures.

I hope this helps you! :)

1. Every summer Cheyanne drives to California. It is 3600 km to get there. If she spends 32 hours driving, what is her speed?​

Answers

Answer:

Their speed = 69.9043 miles per hour

or

Their speed = 112.5 kilometers per hour

Explanation:

a scientist uses 52g of Na2SO4 for a chemical reaction. how many moles of Na atom does the compound contain a) 0.366 b) 0.732 c) 8.422 d)16.845

Answers

Answer:

b).   0.732

Explanation:

52g Na₂SO₄ x     1 mol Na₂SO₄       x      2 mol Na

                          -------------------------      --------------------  =  0.732 mol Na

                           142.04 g Na₂SO₄       1 mol Na₂SO₄

Atomic Mass Units

Na₂ = 22.99 x 2 = 45.98

S     = 32.06

O₄ = 16 x 4 = 64

Na₂SO₄ = 45.98 + 32.06 + 64 = 142.04

There are 2 moles of Na in 1 mole of Na₂SO₄

Which of the following properties is a chemical property?

Answers

Answer:

flammability, toxicity, acidity, reactivity are some examples.

sorry you left out your options.

Answer:

Where are the options

Explanation:

Can you be a little more specific about your question?

1. ___is the speed and direction of movement.
1 Acceleration
2Density
3Velocity
4Work

Answers

Answer:

VELOCITY

Explanation:

VELOCITY IS THE SPEED AND DIRECTION OF MOVEMENT

Explanation:

velocity

reason: The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion (e.g. 60 km/h to the north).

Is chlorine a substance or a mixture

Answers

Answer:

its a substance

Explanation:

Someone pls help me I will make you brain

Answers

Answer:

It is true answer. Ozone = O3

If a planet's distance from the Sun is doubled, which of the following is true?

The orbital period increases.
The orbital period increases.

The eccentricity of its orbit increases.
The eccentricity of its orbit increases.

The average speed of the orbiting planet increases.
The average speed of the orbiting planet increases.

The gravitational force between the planet and the Sun increases.

Answers

Answer:

La fuerza gravitacional entre el planeta y el Sol aumenta.

Explanation:

in glycolysis, what starts the process of glucose breakdown?

Answers

Answer:

That would be ATP, hope this helps! :)

how to calculate atomic mass of sodium ?(in process)​

Answers

Answer:

Atomic mass of Sodium is 22.9897 u. Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. The unit of measure for mass is the atomic mass unit (amu). One atomic mass unit is equal to 1.66 x 10 -24 grams.

Explanation:

Each school day, it takes Mrs. Wohlfert an hour to drive 50.3 miles to drop Dezzie off at daycare. While she travels on US 20, she looks at her speedometer and it says she's going 75 mph, so she better slow down! Once she arrives in Plymouth, she takes 5 minutes to get Dezzie into daycare and say goodbye. It takes Mrs. Wohlfert 10 minutes to drive the 3.9 miles between daycare and Lincoln. Mrs. Wohlfert stays at school for the day for 8 hours, then leaves Lincoln to pick up Dezzie at daycare and head home.



What is Mrs. Wohlfert's total distance traveled in a day?

What is Mrs. Wohlfert's total time travelling from when she leaves her house in the morning to when she gets back home in the afternoon?

What was Mrs. Wohlfert's instantaneous speed that she saw during her trip to school?

Answers

Answer:

7.06

Explanation:

because its improper

1s22s22p63s23p64s23d104p65s24d105p66s24f145d106p2

Answers

Answer:

batqyqy6w

Explanation:

We may suspend accounts that violate the Brainly Code of Conduct. Look for a follow-up email.  

2NaClO3 ——> 2NaCl + 3O2

1) if you produced 114.25g NaCl, how many grams of NaClO3 did you decompose?


2) Using the same reaction in the first exercise; how many particles of NaClO3 are needed to
produce 68.30L of oxygen?

Answers

Answer:  

1) 208.09 g2) 7.11 × 10²² particles

Explanation:NUMBER ONE

Find moles of Known Substance (NaCl)

Moles of NaCl = mass ÷ molar mass

                        =  114.25 g ÷ 58.44 g/mol

                        = 1.955 mol

Use Mole Ratio of Known to Unknown (NaCl : NaClO₃) to Determine Moles of Unknown

The mole ratio of NaCl to NaClO₃ is 2 to 2 or simply 1 to 1.

This means that for each mole of NaCl produced the same number of moles of NaClO₃ was decomposed.

∴ since moles of NaCl = 1.955 mol,

then moles of NaClO₃ = 1.955 mol

Find Mass of Unknown

Mass of NaClO₃ = moles × molar mass

                           = 1.955 mol × 106.44 g/mol

                           =  208.09 g

NUMBER TWO

Determine the Moles of Known (O₂)

moles of O₂ = (volume × density) ÷ molar mass

                    = (68.30 L × 0.0828 g/L) ÷ 32 g/mol

                    = 0.177 mol

Use Mole Ratio of Known to Unknown (O₂ : NaClO₃) to Determine Moles of Unknown

Mole ratio of O₂ : NaClO₃ is 3 : 2. Therefore for each mole of oxygen produced, ²/₃ the moles of NaClO₃ is produced.

∴ if moles of O₂  =  0.177 mol

then moles of NaClO₃ =  0.177 mol × ²/₃

                                     = 0.118 mol

Find the Number of Particles of Unknown

Number of particles  = moles × Avogadro's Number

                                  = 0.118 mol × (6.022 × 10²³ particles/mol)

                                  =  7.11 × 10²² particles

Oxygen cannot be broken
down into a different
substance. What can we call
oxygen?

Answers

Answer:

• Oxygen is an element

Answer:

We can call it an element.

Which of the following is the best explanation for the fact that crushing increases the rate at which a solid dissolves in a liquid?

Select one:
a. The temperature of the solution is increased when the solid is crushed.
b. The surface area of the solute is increased when it is crushed.
c. Crushing increases the amount of solute present.
d. Crushing makes stirring the solution easier.​

Answers

It’s D cause i know I know I know I know

The aqueous fluid outside of a cell is known as
fluid.
O interstitial
O intracellular
O semipermeable
O desmotic

Answers

The answer is: Interstitial. Intracellular is wrong - it refers to inside of the cell.

hello does anyone get this????????????? pls help

Answers

Explanation:

physical changes : boiling water, freezing water, a pencil being sharpened.

chemical change : rotting cheese, exploding dynamite.

Answer:

boiling water

a pencil being sharpened

freezing water

Explanation:

A change that does not lead to any difference in chemical composition of a substance is known as a physical change.

For example, shape, size, mass, volume, density, boiling point, etc of a substance are all physical properties.

On the other hand, changes that lead to bring change in chemical composition of a substance is known as a chemical change.

For example, exploding dynamite, rotting cheese etc are all chemical changes.

Chemical change is the change in which there is rearrangement of atoms and the new substances get formed.

Boiling water only changes the phase from liquid to gas and thus is a physical change.

Pencil on being sharpened only gets smaller in size and thus is a physical change.

exploding dynamite would result into formation of new substances and hence a chemical change.

Freezing water only changes the phase from liquid to solid and thus is a physical change.

Rotting cheese would result in formation of new substances and hence a chemical change.

Therefore, we can conclude that following are the physical changes in matter.

boiling water.

a pencil being sharpened.

freezing water.

how should the mass of copper metal at the end of the reactions compare to the starting mass of copper?

Answers

Answer:

The produced mass of copper should equal the starting mass of copper.

which element has the highest monetary value?
A) gold

B) Silver

C) nickel

D) lead​

Answers

Gold is higher then silver and nickle, lead

If greenhouse gases in the atmosphere act like a blanket around the Earth, how is this "blanket” being changed by human activities?

It is getting thinner and keeping the Earth cooler.
It is getting thicker and keeping the Earth cooler.
It is getting thicker and keeping the Earth warmer.
It is getting thinner and keeping the Earth warmer.

Answers

Answer:

It is getting thicker and keeping the Earth warmer.

Answer:

it is getting thinner and keeping the earth warmer

why are being flammable and combustible be considered to be chemical properties and not physical properties?

Answers

Answer:

Because combustion is a chemical change and not a physical change. Do, flammable and combustible gases burn and change into new substance.

As opposed to a physical change, combustion is a chemical transformation. Combustible and flammable gases do burn and transform into new substances.

What are considered combustible?

Combustible materials are those that, when exposed to fire or heat, will ignite, burn, sustain combustion, or produce flammable gases in the form and circumstances anticipated for their application. Combustible materials include rubber, plastics, rubberized materials, and wood.

Are metals combustible?

Depending on the environmental factors, most metals are flammable to varied degrees. With water, acids, and other chemicals, certain metals can react in ways that are hazardous. Some metals can spontaneously ignite and heat up.

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PLSSS HELP MEEE ASAPA!!

Which pair of elements has reactivity that is similar to Fluorine, F?

Answers

Answer:

halogens group 7A on the periodic

table

is preferable a high percent error or a low percent
error?

Answers

Explanation:

Percent errors tells you how big your errors are when you measure something in an experiment. Smaller percent errors mean that you are close to the accepted or real value. For example, a 1% error means that you got very close to the accepted value, while 45% means that you were quite a long way off from the true value.

the modern model of the atom shows that electrons are:

Answers

Electrons are orbiting the nucleus in the fxed way paths located in solid sphere

Using the periodic table, explain which pair of the following gases have the most similar properties and why. Nitrogen (N), Fluorine (F), Neon (Ne), Krypton (Kr), and Oxygen (O).

Answers

Neon (Ne) and Krypton (Kr) because they are both noble gasses and in the same group (group 18). Elements in the same group share similar chemical properties.

why are protons and electrons attracted to each other

Answers

Answer:

Protons have a positive charge. Electrons have a negative charge. The charge on the proton and electron are exactly the same size but opposite. Since opposite charges attract, protons and electrons attract each other.

Explanation:

Groundwater that soaks into the ground is sometimes stored in underground layers. These underground layers can be used as
water sources. Humans extract this water by digging, driving, boring, or drilling wells into the ground and then pumping the water
out.
What are these underground water storage areas called?
O A. aquifers
OB. deltas
O C. watersheds
OD. drainage basins

Answers

Answer:

the answer is A) aquifers

Answer:

Aquifers

Explanation:

which scenario supports the ""one gene–one enzyme"" hypothesis of metabolic disease causation?

Answers

The scenario that supports the "one gene-one enzyme" hypothesis of metabolic disease causation is Phenylketonuria (PKU). This disease (PKU) is caused by the failure to produce a functional variant of an enzyme.

Phenylketonuria (PKU) is a metabolic inherited disorder associated with a decreased metabolism of the amino acid phenylalanine.

PKU is caused by a mutation in the gene responsible for encoding a key enzyme needed to break down phenylalanine.

Untreated PKU may lead to diverse health problems which include brain damage, intellectual disability, seizures, mental disorders, etc.

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Your future is affected by your choices today? I agree or disagree​

Answers

Answer:

The choice that we had decided on doing today factors our future because whatever choice we decide on doing in the present day can impact how our life will play out in the future. ... After all, it is your life, so whatever you chose to do, you have the power to decide and create what you think would be best for you

Explanation:

Which factor of production would water be considered?
A) Land
B)Labor
C) capital
D)entrepreneurship

Answers

Explanation:

land.

I think it is the answer

Answer:

land .......................

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