What type of molecule is shown below?
A. Alkene
B. An Alkane-alkene
C. An alkane-alkyne
D. An alkane

Volume = 5x3x10 = 150 cm cubed

Mass = 150x100 = 15000 grams

Density = 15000/150 = 100g/cm cubed

Vasoconstrictor Preservative is the solution that is added to the cartridge of local anesthetic that can trigger bronchospasms.

Contraction of the muscles that line the airways (bronchi) in your lungs is referred to as bronchospasms. This causes difficulty in breathing. Chest tightness, Wheezing, Shortness of breath, Difficulty breathing are some of the symptoms of bronchospasms.

Vasoconstrictor Preservative is an additive which is used in local anesthetic. It enhance the duration and quality of the local anesthetic and also decreases surgical blood loss. Local anesthetics without a vasoconstrictor should be used in patients with sulfite allergy. Epinephrine, Levonordefrin, and Norepinephrine are some of the vasoconstrictors used with local anesthetic.

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1.843 cm is the inner diameter of a 21.0 cm long cylindrical glass tube.

What is inner diameter of a cylinder?

Two times the wall thickness of the pipe is subtracted from the total exterior diameter to determine the inner diameter of the pipe. By removing the pipe's walls from the computation, just the internal diameter remains.

Lets volume of tube be V

V = 44.23/0.789

calculate by using conversion factor= 56.058 cm^3

Volume of cylinder = πr^2h

⇒ r^2= [tex]\frac{V}{\pi h}[/tex] ,

⇒ r = [tex]\sqrt{\frac{V}{\pi h}}[/tex]

⇒ r = [tex]\sqrt{\frac{56.058 }{\pi 21}}[/tex]

⇒ r = 0.9215 cm

And as we have radius, we can calculate diameter

d = 2r   = 2 × 0.9215 cm   = 1.843 cm

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If a lone pair is participating in resonance, this capability the atom is both Sp2 or Sp hybridized. Looking at the Sp2 case, that ability there are 3 Sp2 orbitals and one P orbital. Assuming there is no formal cost on the atom, the three hybrid orbitals are used for bonding and the lone P-orbital holds the lone pair. Sp3 orbitals are no longer involved with resonance so the lone pair worried in resonance should never be in an Sp3 orbital.

A mathematically described area round a nucleus in an atom or molecule that may also include zero, one, or two electrons Electrons organize themselves in cloudlike areas round the nucleus referred to as orbitals.

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The mass of nitrogen contained in 70.0 g of C6H5NO3 is 7.05g.

The mass of an element in a compound can be calculated by dividing the molar mass of the element by the molar mass of the compound multiplied by the mass of the compound.

According to this question, 70.0 g of C6H5NO3 is contained in a substance.

Molar mass of nitrogen is 14g/mol

Mass of nitrogen = 14g/mol/139.11g/mol × 70g

mass of nitrogen = 7.05g

Therefore, the mass of nitrogen contained in 70.0 g of C6H5NO3 is 7.05g.

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When you place a piece of cool metal in the sun, it is heated by the sun’s energy they show that heat flows from warmer to cooler

In the given example conduction concept are seen conduction means conduction is the transfer of heat energy from one substance to another or within a substance in which heat is transferred via conduction and when heat energy is converted through piece of metal then the substance itself does not flow and heat is transferred internally, by vibrations of atoms and molecules and electrons can also carry heat, which is the reason metals are generally very good conductors of heat

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Rudy consumes  2.5 ×[tex]10^{-4}[/tex] moles hydrogen ions.

What are ions?

A negatively charged ion called an anion has more electrons than protons compared to a positively charged ion called a cation. The electrostatic force causes opposite electric charges to be drawn towards one another, causing cations and anions to attract one another and easily form ionic compounds.

Atomic or monatomic ions are those made up of just one atom, whereas molecular or polyatomic ions are those made up of two or more atoms. Physical ionization occurs when molecules spontaneously collide in a fluid (gas or liquid), producing "ion pairs" that each contains a free electron and a positive ion. Chemical reactions, such as the dissolution of a salt in liquids, can also produce ions.

Rady consumes 500 ml of organic juice of [tex]p^{H}[/tex]

3.3

[tex]p^{H}[/tex] = 33

- log [[tex]H^{+}[/tex]] = 3.3

[[tex]H^{+}[/tex]] = [tex]10^{-3.3}[/tex]

[[tex]H^{+}[/tex]] = 5.01 x [tex]10^{-4}[/tex] M

Volume of organic juice = 500ml = 0.5L

Mole of [tex]H^{+}[/tex] ions = 2.5 ×[tex]10^{-4}[/tex] moles

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Response: 26.3 nm

A proton is moving at a speed of 0.30 mm s-1.

if the uncertainty in its momentum is to be reduced to 0.0400 per cent

0.04% of 0.3 Mms-1 = delta v.

= 1.2*10^-4 Mm/s

= 1.2*10^-4*10^6 m/s

delta v= 120 m/s

delta x *m*delta v=h/4pi

delta x*(1.67*10^-27)*120 = 6.626*10^-34/ 4pi

delta x = 2.63 *10^-10

delta x = 26.3 nm

if the uncertainty in its momentum is to be reduced to 0.0400 per cent, 26.3 nm will be the uncertainty.

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The percent yield is 65.76 % .

The reaction mentioned in question is

                    [tex]WO_3 + 3H_2[/tex]  →  [tex]W + 3H_2O[/tex]

Molecular mass of 231.8 g

Percent yield is determined by calculating the mass of water that is formed by given mass of tungsten(VI) oxide

61.7g [tex]WO_3[/tex][tex]* 1mol WO_3/231.8g[/tex]      

                                      [tex]* 3mol of H_2O/ 1mol of WO_3 *18g/ 1mol of H_2O * 1ml/ 1g[/tex]

                                     =   14.37 ml

Percent yield  can be calculated by taking ratio of actual and theoretical yield of water formed = [tex]\frac{9.45}{14.37}[/tex] *100

            Percent yield = 65.76 %

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An oxygen (o) atom has 8 protons, 8 neutrons, and 2 unfilled electron orbitals.

The three-dimensional regions surrounding an atom's nucleus known as electron orbitals are where a certain electron can be found. Two electrons can fit into each orbital.

They go by the name of atomic orbitals too. The number of electrons an atom contains determines the form of its atomic orbitals. The s, p, d, and f orbitals will all be covered in this lesson. Their orbital forms will also be revealed to us.

An orbital is a mathematical function that, according to its precise definition, represents the location of an electron in an atom with a high degree of probability. According to the mathematical function for that orbital, the term "atomic orbital" often refers to the area of space where an electron might be present.

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The person will live  73.62 years

The heartbeats 80 times in 1 minute

Therefore , 1 heartbeat takes [tex]1/80 minutes[/tex] time

In whole life number of heartbeats = [tex]3.1* 10^{9}[/tex]

Thus, time in which [tex]3.1* 10^{9}[/tex] heart beat will occur = [tex]3.1* 10^{9} * 1/80 minutes[/tex]

                                                                                  = [tex]0.03875 * 10^{9}[/tex] minutes

Since 1 minutes =[tex]1.90259 * 10^{-6}[/tex] year

Therefore,  [tex]0.3875 * 10^{9}[/tex] minutes = [tex]0.03875 * 10^{9}[/tex] * [tex]1.90259 * 10^{-6}[/tex] year

                                                     = [tex].073625* 10^3[/tex] years

                                                     = 73.62 years

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The moles of ammonia present in a 3.939 g sample having molar mass of 17.030 g/mol is 0.23 mole.

The mass of one mole of a substance, whether be an element or a compound is known as the molar mass.

If the molar mass of ammonia is 17.030 g/mol, then

In 1 mole of ammonia there are 17.030 g.

So, by definition of molar mass, there are-

17.030 g in 1 mole of ammonia,

In 3.939 g of ammonia, number of moles are -

number of moles = Given mass

                                Molar mass

moles = 3.939 g         = 0.23 mol

              17.030 g/mol

The moles of ammonia present in a 3.939 g sample are 0.23 mol.

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Answer:

a compound of hydrogen and carbon, such as any of those which are the chief components of petroleum and natural gas.

"the rain is rich in benzene and hydrocarbons"

Answer: a compound of hydrogen and carbon, such as any of those which are the chief components of petroleum and natural gas.

Explanation:

in organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons are examples of group 14 hydrides. Hydrocarbons are generally colorless and hydrophobic, and their odors are usually weak or exemplified by the odors of gasoline and lighter fluid.

7.5ml distilled water is used to 0. 0 ml of a 0. 25% m/v hcl solution if 1% m/v hcl was available

Here so 2.5 ml of 1% m/v HCl and (10 - 2.5) = 7.5 ml distilled water taken to prepare 10 mL of a 0.25% m/v HCl solution. 2.5 mL of 1 % m/v HCl is needed. 7.5 ml of distilled water is used to make 10ml solution and in that solution 1% hcl means 3.6 hcl is needed. mass of hcl is 36g/mol

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Step 1 convert lbs to kg step 2 kg to g 3rd step g to mg

Here given data is 0.47 pound then we have to convert how many miligram = ?

So here 0.47 pound (lbs) = 0.2131 kg

1 kg = how many gram then 1kg = 1000 gram

So, 0.2131 kg = 213.1 gram

So 1 gram = 1000 mg then  

So, 213.1 gram = 0.2131 mg

Then here three conversion are seen means step 1 =0.47 pound (lbs) = 0.2131 kg to step 2 = 2131 kg = 213.1 gram to step 3 = 213.1 gram = 0.2131 mg

This is the conversion from beginning to ending

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Hello!

Density measures... (c) how tightly packed an object's particles are.

Hope this helps!

A chemist tests the quality of a brand of soft drink. The branch of chemistry he might use out of Analytical chemistry, physical chemistry, biochemistry, organic chemistry, and inorganic chemistry is analytical chemistry.

What are the branches of chemistry?

Analytical chemistry, physical chemistry, biochemistry, organic chemistry, and inorganic chemistry are thought to constitute the five main branches. The study of compounds of carbon and itself is called organic chemistry. The study of substances not included in organic chemistry is known as inorganic chemistry. The study of matter's chemistry and the creation of instruments to quantify matter's properties are both aspects of analytical chemistry. The field of chemistry known as "physical chemistry" uses physics to the study of chemical reactions. This often involves using thermodynamics and quantum mechanics to research chemistry. The study of chemical reactions that take place within living things is known as biochemistry.

Thus, the branch of chemistry a chemist uses to test the quality of a brand of soft drink is analytical chemistry.

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The ionic compound sodium chloride, also referred to as salt, has the chemical formula NaCl, which denotes a 1:1 ratio of the ions sodium and chloride. The molar weights of 39.34 g Na and 60.66 g Cl in 100 g of NaCl are 22.99 and 35.45 g/mol, respectively.

If 45.98 g of sodium combines with an excess of chloride gas to form 116.89 g of sodium chloride, what mass of chlorine gas is used in the reaction?

116.89 g – 45.98 = 70.91 g of chlorine must have been used.

The characteristics of sodium and chlorine are as follows:

The characteristics of the chemical sodium chloride are as follows:

In light of this, it may be said that sodium chloride possesses wholly unique properties from those of sodium and chlorine.

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The melting point and the normal boiling point of water in respective temperatures in kelvins are 273 and 373. The correct option is 5.

The boiling point is the point of water when the water vapor of the water is equal to the water vapor of the atmosphere.

The melting point is the point when a solid-state converts into liquid, and changes its physical state.

In Celsius, the boiling point is 100⁰C

In Kelvin, 273 + 100 = 373 K

The melting point is ice is 0⁰C

273 + 0 = 273 K

Thus, the correct option is 5. 273 and 373.

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Frontward thrust the sternum of a patient with pectus carinatum protrudes forward, forcing the surrounding ribs to slant backward. In the funnel chest, the sternum and surrounding cartilages are visible. The natural anatomical location of the sternum is in the midline and in a straight posture. Barrell chest is characterized by a horizontal sternum and an elevated intercostal angle.

What is pectus carinatum?

The word "pectus carinatum" is used to describe a variety of aberrant protrusions of the front chest wall. Depending on where the deformity is most prominent, it can be either chondrogladiolar or chondromanubrial. Additionally conceivable are lateral abnormalities.Hippocrates noted that persons with the carinatum deformity experienced "difficulty breathing" and had a "sharply pointed chest."

Patients with symptoms describe breathlessness and a reduction in stamina. Some people have chest wall stiffness, increasing emphysema, reduced lung compliance, and more respiratory tract infections.

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09/22/2022

There are 1.5×10^23 molecules molecules of potassium nitrate are in a 25 g sample.

molecules of KNO3 = 25gKNO3 x 1mol/101.11gKNO3 x 6.022x10^23 molecules/1mol = 1.5 x 10^23 molecules.

Molecules are made up of one or more atoms. If they contain more than one atom, the atoms can be the same (an oxygen molecule has two oxygen atoms) or different (a water molecule has two hydrogen atoms and one oxygen atom). Biological molecules, such as proteins and DNA, can be made up of many thousands of atoms.

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As the elevator (lift) moves to the top of the ramp, the skier's potential energy increasing .

Potential energy is a form of stored energy that is dependent on the relationship between different system components. A spring has more potential energy when it is crushed or stretched.

A steel ball has far more potential energy raised above the ground than has after falling to Earth. In the raised position it is capable of doing more work.

Potential energy is a characteristic of systems rather than of particular bodies or particles; for instance, the system made up of Earth and the raised ball has more potential energy as they become further apart.

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An element with the electronic configuration  [tex]1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6}[/tex] has Eighteen electrons.

The electronic configuration [tex]1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6}[/tex] is of a Argon. The Atomic number of argon is eighteen. It is represented by the symbol Ar. It belongs to Group 18 and period number 3 of the periodic table. Argon belongs to the family of noble gases. It is a p-block element. The atomic mass of Argon is 39.948 u.

The number of electrons in an element is equal to the atomic number of the element. As the given electronic configuration is of atomic number eighteen , so the total number of electrons in it is also Eighteen.

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An isotope of sodium (Na) has a mass number of 22 it have 11 neutrons

Isotopes are members of a family of an element that all have the same number of protons but different numbers of neutrons. protons are the positively charged particles which are present in the nucleus of an atom. a neutron is a subatomic particle found in the nucleus of every atom except that of simple hydrogen. here sodium (Na) has a mass number of 22 so, in that sodium 11 proton are present and 11 neutron are present.

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It is a result of "balanced forces".

Hope this helps! Also, if you need help with the other questions regarding this assignment, feel free to check out the study set I made on Quizlet. Thanks and good luck!

Quizlet - "Unit 6: Lesson 2 Newton's First Law QC"

h t t p s : / / q u i z l e t. c o m / 7 3 7 7 5 9 5 5 5 / u n i t - 6 - l e s s o n - 2 - n e w t o n s - f i r s t - l a w - f l a s h - c a r d s / ? n e w

According to gravitational momentum, shown under that have balanced forces acting on them prefer to remain that way. According to Newton's first law balanced forces are affect an object that is stationary.

Unless influenced by an imbalanced force, an item at rest stays at rest, and an object in motion keeps moving in a straight path at a constant pace.

An item that is stationary is one that is not shifting or considered the beginning. It is dormant. In such posture, all the forces exerting pressure on it are balanced out or their combined magnitudes are zero.

Based to their inertia, stationary objects which have already balanced forces acting on them prefer to stay that way. When an unbalanced force is operating on a stationary item will it move.

Thus, option D is correct.

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Answer:

Noble gases are nonreactive, nonmetallic elements in group 18 of the periodic table. They have eight valence electrons, which fill their outer energy level.

Explanation:

Answer:

Noble gases are nonreactive, nonmetallic elements in group 18 of the periodic table. Noble gases are the least reactive of all elements. That's because they have eight valence electrons, which fill their outer energy level.

Answer:

Its when it transforms into a diffrent product like water to ice.

Explanation: