What is this called??

In most crystalline metals, plastic deformations caused by loads greater than the yield stress are the result of dislocation motion.

The dislocation motion plays the important role in the plastic deformation. The plastic deformation occurs when a material will be stress. The resulting plastic deformation is the permanent change. this permanent change is cannot be recovered by the removing the the stress that caused the deformation. the plastic deformation caused by the dislocation motion. dislocation motion, atoms in metals to side readily.

Thus, the plastic deformations is caused by the dislocation motion. this plastic deformation is the permanent change and not be removed by the simply removing the stress.

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The approximate atomic mass (in u ) of the daughter atom is 234.04 u if we ignore the recoiling of the daughter nucleus.

Since it is known to us that an alpha emission of the daughter nucleus is 234.90 Th (Thorium 23 )

On converting the kinetic energy to atomic mass we get:

4.01 MeV/931.5 MeV/u = 0.0043048 u

The mass of the Uranium is 238.050783u and the alpha particle is 4.002602 u.

Therefore,

The remaining mass = 238.050783 - (4.002602 + 0.0043048)

= 234.0438762 u

The remaining mass = 234.04u

Therefore, the final remaining mass of the daughter nucleus is 234.04u if we ignore the recoiling of the daughter nucleus.

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The approximate atomic mass (in u ) of the daughter atom is 234.04 u if we ignore the recoiling of the daughter nucleus.

Since it is known to us that an alpha emission of the daughter nucleus is 234.90 Th (Thorium 23 )

On converting the kinetic energy to atomic mass we get:

4.01 MeV/931.5 MeV/u = 0.0043048 u

The mass of the Uranium is 238.050783u and the alpha particle is 4.002602 u.

Therefore,

The remaining mass = 238.050783 - (4.002602 + 0.0043048)

= 234.0438762 u

The remaining mass = 234.04u

Therefore, the final remaining mass of the daughter nucleus is 234.04u if we ignore the recoiling of the daughter nucleus.

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The survival level of C02 for humans in space is 0.01 to 0.02% and within the level will have minor symptoms.

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an electronic interaction that stabilizes alkenes and carbocations and results from overlap of a vacant p orbital on one atom with the neighboring c-h sigma bond is known as Hyperconjugation.

The delocalization of the sigma electrons in the C-H bond of an alkyl group coupled to an atom in an unsaturated system or to an atom with an unshared p orbital is known as hyperconjugation, which is a general stabilizing interaction. When a suitable attacking reagent is present in an organic molecule, electron displacement happens.

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Explanation:

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The mechanistic intermediate that is used to explain the preference for addition of the Br atom , of Hbr, to the internal carbon of a terminal alkyne is free-radical conditions.

The addition of HBr to an alkyne under free-radical conditions is governed by the addition of a Br atom to the alkyne which helps in giving the most stable alkyl radical possible. The addition of HBr in the absence of radicals is governed by the addition of a proton to the double bond which helps in giving the most stable carbocation possible.

A molecule wherein a carbon atom has a fine fee and three bonds is known as a carbocation. We can basically say that they are carbon cations. Later, it forms into carbonium ion. Any even-electron cation that possesses a big effective charge at the carbon atom is known as an carbocation.

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These technology would changes in near future

Artificial Intelligence

Gene Technology

Human-Computer Interfaces

What is Artificial Intelligence Technology?

The definition of artificial intelligence is the theory and development of computer programs that are able to do tasks and solve problems that usually require human intelligence

You've probably read or heard of the ubiquitous buzzword known as artificial intelligence, or AI. When you think about AI, articles about technology, the digital age, and robotics might come to mind. But what exactly is it, and how is it put to use?

Programming technology to solve problems is a technological advancement known as artificial intelligence

In-depth explanations of artificial intelligence's definition, applications, and future prospects are provided in this manual.

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The absorptions would you expect to observe in the ¹³C NMR spectra of the  molecules a)  2-Methyl-2-butene is 5 signals

b) trans-1,3-Dimethylcyclohexan is 8 signals.

The proton which have equivalent chemical environment will gives one signal in ¹³C NMR. the ¹³C NMR signals will tell us about the number of different set of carbon which is in equivalent environment.

a)  2-Methyl-2-butene - in this compound there are 5 carbon atoms present . all the 5 carbon atoms are having the different chemical environment ,so the ¹³C NMR will show 5 signals.

b) trans-1,3-Dimethylcyclohexan -  in this compound there are 5 carbon atoms present . all the 8 carbon atoms are having the different chemical environment ,so the ¹³C NMR will show 8 signals.

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The energy of the wave of frequency 3.78×10¹⁰ Hz is 2.5×10⁻²³ J.

Energy is the ability or the capacity to perform work.

To calculate the energy of the wave, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the energy of the wave is 2.5×10⁻²³ J.

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A plate slides beneath another plate due to convection currents and gravity. Hence option 2 is correct.

Subduction is defined as a process through which, at convergent borders, the oceanic lithosphere is recycled into the Earth's mantle. Subduction happens when one plate is driven beneath the other and back into the Earth's interior when two plates collide at a convergent boundary.

An object is drawn into the mantle by convection currents. Due to gravitational attraction, one plate slides under another. When an oceanic plate collides with a continental plate and slides beneath it, subduction occurs. When two oceanic plates or a plate bearing continents contact, one plate will bend and slide under the other.

Thus, a plate slides beneath another plate due to convection currents and gravity. Hence option 2 is correct.

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Answer: b. A plate slides beneath another plate due to convection currents and gravity. 

Explanation:

Answer:

NA atoms

6.02 × 10²³ atoms

The time taken for the hiker to travel a total distance of 25.0 km at an average speed of 5.2 km/h is 4.8 hours

We know that speed is defined as the distance travelled per time as shown below:

Speed = Distance / time

With the above formula, we can determine the time taken for the hiker to travel a total distance of 25.0 km at an average speed of 5.2 km/h. Details below:

Speed = Distance / time

5.6 = 25 / time

Cross multiply

5.6 × time = 25

Divide both sides by 5.2

Time = 25 / 5.2

Time = 4.8 hours

This, the time taken is 4.8 hours

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The volume of nitric acid needed to titrate calcium hydroxide is 100.0 mL.

The reaction between nitric acid (HNO₃) and calcium hydroxide (Ca(OH)₂)

2 HNO₃ + Ca(OH)₂ → Ca(NO₃)₂ + 2 H₂O

Calculate the number of moles Ca(OH)₂

n = MV

n Ca(OH)₂ = MV = 0.01000 × 125.0 = 1.25 mmol

According to Avogadro's law, the ratio of the coefficients of each element is equal to the ratio of the number of moles.

n Ca(OH)₂ : n HNO₃ = 1 : 2

1.25 : n HNO₃ = 1 : 2

n HNO₃ = 1.25 × 2 = 2.50 mmol

Calculate the volume of HNO₃

V = n ÷ M

V = 2.50 mmol ÷ 0.02500 M

V = 100.0 mL

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N2  < F2 <  Cl2 < 02 By Terms Of Increasing Average Molecular Speed At 25°C, according to the stated formula.

Molecules were inorganic entities that are composed of different molecules. Examples include typical substances like water (H2O) and carbon dioxide (CO2).

Two or even more atoms make up molecules. They may have the same atoms (for example, an oxygen molecule contains two oxygen atoms) or different atoms if they have more than one (a water molecule has two hydrogen atoms and one oxygen atom). Biological molecules like DNA and proteins can include thousands of atoms.

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The energy released by the phase change of a substance  can be calculated using calorimetric equation. The energy released during conversion D from gas to solid at the specified condition is 496.58 kJ.

Calorimetry is an analytical tool used to determine the heat energy released or absorbed by a chemical or physical change. The calorimetric equation connecting the heat energy q with mass of the substance m, specific heat c and the temperature difference ΔT is written as:

q = m c ΔT .

Specific heat of the gas= 0.5 J/ g ° C

mass m = 360.5 g

temperature difference = (184 -(-91)) =275°C.

heat released q = 360.5 g × 275°C ×   0.5 J/ g ° C

                           =  49658.87J

                           = 496.5 kJ

Therefore, the heat energy released from the given phase change is 496.5 kJ.

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Answer:

The punching bag exerts a force of 1300 Newtons on the boxer.

Explanation:

The punching bag exerts 1300 Newtons on the boxer because Newton's third law says that "every action has an equal and opposite reaction" which means that for example, as the boxer punches the punching bag, the boxer exerts a force of 1300 Newtons to the right. The punching bag at the same time exerts a force of 1300 Newtons to the left against the boxer. So "every action" would be the boxer pushing on (punching) the bag and the bag moving (for example) to the right, away from the boxer, "equal and opposite reaction" would be the punching bag pushing against the boxer (during contact) and moving to the left, which is cause for the back and forth movement of the bag after contact with the boxer.

(Sorry for the long-winded explanation, hope this helps!)

The product of this reaction is calcium chloride (CaCl2) and hydrogen gas (H2).

For this reaction, we have single displacement reaction.

What is a single displacement reaction?

A single displacement reaction is a type of chemical reaction in which one element exchanges its place with another element in a compound. This type of reaction is also known as a single replacement reaction or a substitution reaction. In a single displacement reaction, the elements involved must be different. Examples of single displacement reactions include the reaction between magnesium and hydrochloric acid to produce magnesium chloride and hydrogen gas, and the reaction between zinc and sulfuric acid to produce zinc sulfate and hydrogen gas.

In this reaction, Calcium (Ca) metal is seen reacting with Hydrochloric acid (HCl). The Ca replaces the H in HCl and we end up with CaCl2 and H2.

The resulting reaction is CaCl2 + H2.

The complete reaction is:

Ca + 2HCl ---> CaCl2 + H2

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The IUPAC name for C2H5 is ethyl radical.

Ethyl is a Radical formed from Ethane. Ethane is a chemical compound, which is a colorless and odorless gas. It is a non-polar dispersion force.

Ethyl is also known as ethyl alcohol or ethanol. It is a flammable liquid that is toxic. It is used by medical practitioners, mainly in hand sanitizers.

Ethyl is an organic hydrocarbon molecule. IUPAC is an international federation that represents chemistry and its related tools and techniques. It is a part of the International Science Council, and helps in designing various chemical structures, names  and standards.

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Answer:

The protons and electrons of an atom are attracted to each other. They both carry an electrical charge. Protons have a positive charge (+) and electrons have a negative charge (-). The positive charge of the protons is equal to the negative charge of the electrons.

Explanation:

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The change of enthalpy for the given reaction is equal to -6387 KJ.

Enthalpy can be defined as the sum of internal energy and the product of volume and Pressure, expressed as shown below:

H = U + PV

The change in enthalpy between the beginning and final states can be expressed as:

ΔH = ΔU + ΔPV

Given reactions with enthalpy change are shown below:

2Al (s) + 6HCl (aq) → 2AlCl₃ (aq) + 3H₂ (g)      }×1        ΔH₁ = -1049 kJ

HCl (g) → HCl (aq)                                            } ×6       ΔH₂ = -74.8 kJ/mol

H₂ (g) + Cl₂ (g) → 2HCl (g)                                }× 3      ΔH₃ = -1845. kJ/mol

AlCl₃ (aq)  → AlCl₃ (s)                                      }× 2         ΔH₄ = +323. kJ/mol

[tex]\triangle H^o_f =1\times \triangle H_1 +6\times \triangle H_2+3\times \triangle H_3+2\times \triangle H_4[/tex]

[tex]\triangle H^o_f =1\times (-1049) +6\times (-74.8)+3\times (-1845)+2\times (+323)[/tex]

[tex]\triangle H^o_f =-6387 KJ[/tex]

Therefore, the change of enthalpy for the reaction of the formation of aluminum chloride is -6387 KJ.

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There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, the correct option is option A.

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

An ionic compound is a metal and nonmetal combined compound.  Ionic compound are very hard. They have high melting and boiling point because of strong ion bond.

Composite materials are made from Concrete and steel. A composite material is made up of two or more constituent materials whose properties are very dissimilar from each other.

Therefore, the correct option is option A.

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7.35 KJ energy is gives off when 1.00 g Fe is reacted with excess oxygen according to the reaction.

The reaction between Fe and O is as below :

4 Fe(s) + 3 O₂(g) → 2 Fe₂O₃(g)

here , Δ H =  - 1652 KJ

The enthalpy change is -1658 KJ. It means the reaction gives off 1652 heat or energy.

Heat released when 1.00g of is reacted with excessive oxygen:

Moles of Iron (Fe) = [tex]\frac{1g}{56g/mol}[/tex] = 0.0178 mol

According to reaction, When 4 moles of an Iron (Fe) reacts with 3 moles of Oxygen (O) it gives 1652 Kilo Joules of Energy.

Then 0.0178 Moles of Iron (Fe) will give :

∴ [tex]\frac{1652 KJ}{4}[/tex] × 0.0178 = 7.35 KJ

So, 1.00 g of Fe reacts with an excess of oxygen to release 7.35 KJ of energy.

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the answer is d

i looked this up i was confused myself but its d or e

IUPAC name for Rust is Iron (III) Oxide. Its common name is corrosion mostly seen in iron or steel.

Rust is the common name for iron oxide. The most familiar form of rust is the reddish coating that forms flakes on iron and steel (Fe2O3) but rust also comes in other colors including yellow, brown, orange, and even green. The different colors reflect various chemical compositions of rust. Rust specifically refers to oxides on iron or iron alloys such as steel. There is tarnish on silver and verdigris on copper. The chemical name of rust is iron oxide is iron (III) oxide. The familiar red form of rust is Fe2O3. but iron has other oxidation states, so it can form other colors of rust. Rust forms when iron or its alloys are exposed to moist air. The oxygen and water in air react with the metal to form the hydrated oxide.

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A matter is made up of Tiny particles which contain mass, and are too small to be seen. Option B is the correct answer.

A matter consists of atoms and consist of protons, neutrons, and electrons. Both the protons and neutrons are placed in the nucleus, which is the center of an atom.

Matter can occupy space and has mass, and matter consists of many phases and it can take different forms. The matter is generally in the form of a solid, liquid, or gas.

The matter is also made up of tiny particles called atoms!

There are three main states of matter They are, solid, liquid, and gas. Water is one of the substances that exist in all three states.

1. SOLID:

Examples of solids are: metals, wood

2. LIQUID:

Examples of liquids: are water and oil.

3. GAS:

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Answer:

Explanation:

1. It is an element since it has only one type of atom

2. It is a compound because 2 types of atoms are chemically bound

3. It is a mixture because it has 2 types of atoms which aren't bound

Answer:

First picture: Element

Second picture: Compound

Third picture: Mixture

Explanation:

First picture:

It represents an element as all the atoms are the same.

Second picture:

The other type of atoms are shown as chemically bonded to the green atoms — in the diagram the green atoms and pink atoms are touching.

Third picture:

It is representing a mixture as the other atoms are not chemically bonded together with the green atoms — the green and orange atoms are seperate and are just mixed

Carbon is covalently bound to four iodine atoms in [tex]CI_{4}[/tex], also known as carbon tetraiodide, which is [tex]sp^{3}[/tex] hybridized.

Its form is tetrahedral, and its bond angles are 109.5°. It is vivid red in color and easily breaks down into tetraiodoethylene [tex]C_{2}I_{4}[/tex].

Of the nonmetals we mix with halogens, carbon has perhaps proven to be the most challenging. The electronegativity of carbon is 2.5, which puts it on par with iodine and just somewhat behind fluorine, chlorine, or bromine. Thus, carbon may share some of its electrons in a covalent connection with halogens.

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Answer:a

Explanation:

look it up

Molarity of 125g cobalt chloride dissolved in a final volume of 300ml is 1.75M.

What is molarity?

Molarity is a unit of concentration for a solution, which is the number of moles of a solute per liter of solution. It is denoted by the symbol “M” and is an important concept in chemistry. Molarity is used to quantify the amount of a solute that is present in a solution and can be used to calculate the volume of a solution required to make a solution with a certain molar concentration. Molarity is a key parameter in determining the properties of a solution and is used to solve for the mass or volume of a solute needed to make a solution.

M= no. of moles of solute /volume of solution (in L)

Volume of solution = 300/1000 =0.3 L

Moles of cobalt chloride = 125/237.9 moles

M= 125/ (237.9×0.3) = 1.75 mol L⁻¹ = 1.75M

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