Are all crystals of the same compound the same shape? Why do you think that is the case?

The statement which is  given below describe a homogeneous catalyst.

"It is in the same phase as the reactants"

The catalyst which have similar phase to the reactant of the reaction is called homogeneous catalyst.

Mostly in  homogeneous catalyst, catalyst present in liquid form.

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Answer:

sulfuric acid ..............

Correct statement in the process of balance the equation CH₄+O₂ → CO₂+2H₂O then add coefficient 2 to O₂ on the left side of the equation

Balance reaction is the chemical reaction in which number atom is arranged specific manner which reaction is balanced means all elements in the reaction are balanced with specific number

And the given reaction is

CH₄+O₂ → CO₂+2H₂O then,

Place a coefficient of 2 in front of the O₂ we now have 4O atoms on both sides CH₄+2O₂ → CO₂+2H₂O

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The measure of the randomness or disorder of a chemical system is entropy.

Answer:

When the electrons in the atom are excited, for example by being heated, the additional energy pushes the electrons to higher energy orbitals. When the electrons fall back down and leave the excited state, energy is re-emitted in the form of a photon

Explanation:

The compound

Is an acid that can be called as:

Carbonic acid.

Answer:

Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or molecules or other ions; by combination of ions with other particles; or by rupture of a covalent bond between two atoms in such a way that both of the electrons of the bond are left in association with one of the

Explanation:

hope this helps

Answer:

Ion, any atom or group of atoms that bears one or more positive or negative electrical charges. Positively charged ions are called cations; negatively charged ions, anions. Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or molecules or other ions; by combination of ions with other particles; or by rupture of a covalent bond between two atoms in such a way that both of the electrons of the bond are left in association with one of the formerly bonded atoms.

Explanation:

Examples of these processes include the reaction of a sodium atom with a chlorine atom to form a sodium cation and a chloride anion; the addition of a hydrogen cation to an ammonia molecule to form an ammonium cation; and the dissociation of a water molecule to form a hydrogen cation and a hydroxide anion.

A hydrocarbon is any of a class of organic chemicals made up of only the elements carbon (C) and hydrogen (H).

A substance composed solely of hydrogen and carbon. Coal, petroleum, natural gas, and tar are examples of hydrocarbons. They are used to generate energy.

A hydrocarbon is an organic chemical compound that is made up entirely of hydrogen and carbon atoms. Hydrocarbons are naturally occurring substances that serve as the foundation for crude oil, natural gas, coal, and other important energy sources.

The carbon atom or atoms are usually in the centre of a hydrocarbon molecule, with the hydrogen atoms covalently bonded around it. Hydrocarbons include CH4 C H 4, methane, C2H4 C 2 H 4, ethene, and C6H6 C 6 H 6, benzene.

CnH2n+2 is the general formula for saturated hydrocarbons (assuming non-cyclic structures) Saturated hydrocarbons are the basis of petroleum fuels and are found as either linear or branched species.The simplest alkanes have their C atoms bonded in a straight chain; these are called normal alkanes.

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Answer:

\(t=82.2s\)

Explanation:

From the question we are told that:

Half life \(t_{1/2}=54.3s\)

Change in concentration \(\triangle conc=6.50 M to 2.27 M\)

Generally the equation for half life is mathematically given by

\(k=\frac{2.303}{t}*log\frac{C_1}{C_2}\)

Where

\(K=\frac{0.693}{t_{1/2}}\)

\(K=\frac{0.693}{54.3}\)

\(K=0.0128\)

Therefore

\(0.0128=\frac{2.303}{t}*log\frac{6.50}{2.27}\)

\(t=82.2s\)

Explanation:

this is the answer of your question .

hope it helped you

The question is missing information. Here is the complete question.

A gas at a pressure of 2.0 atm is in a closed container. Indicate the changes (if any) in its volume when the pressure undergoes the following changes at constant temperature and constant amount of gas. Match the words in the left with the column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer.

1. The pressure increases to 6.0 atm. The volume ________

2. The pressure drops to 0.40 atm. The volume _________

3. The pressure remains at 2.0 atm. The volume _________

Answer: 1. Decreases

2. Increases

3. Does not change

Explanation: According to the Ideal Gas Law, Pressure, Volume and Temperature of an ideal gas is related, as the following: PV = nRT.

In this case, since temperature (T) and amount of gas (n) are constant, the Boyle's Law can be used.

The law states that the volume of a given gas, under the conditios of temperature and amount of it are constant, is inversely proportional to the applied pressure: P₁.V₁ = P₂.V₂

Initial P (P₁) = 2

Initial V (V₁) = V

Final P (P₂) = 6

P₁.V₁ = P₂.V₂

2.V = 6.V₂

V₂ = 1/3V

When the pressure increases to 6 atm, volume decreases by 1/3.

P₁ = 2

V₁ = V

P₂ = 0.4

2.V = 0.4V₂

V₂ = 5V

When pressure drops to 0.4 atm, volume increases by 5.

Since there are no change in the pressure, the volume is the same from the beginning, so does not change.

The can would explode if the temperature reaches 10.94°C or higher. We can use the combined gas law to solve this problem.

(P1 * V1) / (T1) = (P2 * V2) / (T2) where P1 is the initial pressure, V1 is the initial volume (which we can assume is constant for an aerosol can), T1 is the initial temperature, P2 is the final pressure (which we know is 3.30 atm), V2 is the final volume (which we can assume is constant for an aerosol can), and T2 is the final temperature (which we want to find).

First, we need to convert the initial pressure to units of atm:

P1 = 3.00 atm

Next, we can plug in the values and solve for T2:

(P1 * V1) / (T1) = (P2 * V2) / (T2)

(3.00 atm * V1) / (25°C + 273.15) = (3.30 atm * V2) / (T2 + 273.15)

Multiplying both sides by (T2 + 273.15) and dividing by 3.30 atm, we get:

(T2 + 273.15) = [(3.00 atm * V1) / (25°C + 273.15)] * [(T2 + 273.15) / (3.30 atm * V2)]

Simplifying, we get:

T2 + 273.15 = (3.00 / 3.30) * (25°C + 273.15)

T2 + 273.15 = 284.09 K

Subtracting 273.15 from both sides, we get:

T2 = 10.94°C

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Diene: These compounds have a double bond that is conjugated. Dienophile: At least one pi bond exists in these compounds. And occasionally, these pi bonds joined together after some electron withdrawal.

The field of chemistry known as stereochemistry is concerned with "the study of the various spatial configurations of atoms in molecules." The methodical presentation of a particular area of science and technology, known as stereochemistry, typically necessitates a little detour into the past.

a discipline of chemistry that examines the spatial configuration of atoms and groups in molecules, as well as how that configuration relates to the attributes of a substance.

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Answer:

B

Explanation:

it is bigger then earth so it will have a greater mass.

Answer:

B

Explanation:

It has a greater mass HOPE THIS HELPS l_l

Answer:

3.65 g of cyclohexene

Explanation:

Cyclohexanol + phosphoric acid ----> cyclohexene

The reaction is 1:1 hence the limiting reactant is phosphoric acid.

Hence,

1 mole of phosphoric acid yields 1 mole of cyclohexene

0.0444 moles of phosphoric acid yields 0.0444 moles of cyclohexene

Theoretical yield = number of moles of cyclohexene × molar mass of cyclohexene

Theoretical yield = 0.0444 moles of cyclohexene × 82.143 g/mol

Theoretical yield = 3.65 g of cyclohexene

The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.

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Evaporation causes the dew to vanish when the temperature of the atmosphere rises with the rising of the sun.

A kind of vaporization called evaporation takes place on the surface of a liquid as it transitions into the gas phase. When humidity impacts the rate of evaporation of water, for example, a high concentration of the evaporating material in the surrounding gas considerably slows down evaporation.

Similar to how perspiration evaporates from your body on a hot day to cool you down, dew evaporates as it cools the plant. This lessens heat exhaustion in extremely hot settings. Some species, particularly desert plants, are capable of directly absorbing water via their leaves.

Thus, Evaporation causes the dew to vanish when the temperature of the atmosphere rises with the rising of the sun.

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The molarity of the sodium hydroxide solution is 0.09111 M.

What is Molarity?

Molarity is a measure of the concentration of a solution. It is defined as the number of moles of solute dissolved in one liter of solution.

Molarity is an important concept in chemistry because it allows us to quantify the amount of solute in a solution and to make predictions about the behavior of the solution in various chemical reactions.

First, we can calculate the number of moles of potassium hydrogen phthalate using its molecular weight:

moles of KHP = mass / molecular weight

moles of KHP = 0.600 g / 204.22 g/mol

moles of KHP = 0.002938 mol

Since one mole of KHP reacts with one mole of NaOH, we know that there are also 0.002938 moles of NaOH in the titrated solution. We can calculate the molarity of the NaOH solution using the formula:

molarity = moles of solute / volume of solution (in liters)

First, we need to convert the volume of the NaOH solution from milliliters to liters:

volume of NaOH solution = 32.21 mL = 0.03221 L

Now we can calculate the molarity of the NaOH solution:

molarity = 0.002938 mol / 0.03221 L

molarity = 0.09111 M

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Answer:

Explanations :

Answer:

3.47 ×10^-10

Explanation:

The equation of the reaction is 2Cr3+(aq) + Pb(s)------->2Cr2+(aq) + Pb2+(aq)

A total of two moles of electrons were transferred in the process. The chromium was reduced while the lead was oxidized. Hence the lead species will constitute the oxidation half equation and the chromium will constitute the reduction half equation.

E°cell = E°cathode - E°anode

E°cathode = -0.41 V

E°anode = -0.13 V

E°cell = -0.41 -(-0.13) = -0.28 V

From

E°cell = 0.0592/n log K

n= 2, K= the unknown

-0.28 = 0.0592/2 log K

log K = -0.28/0.0296

log K = -9.4595

K = Antilog ( -9.4595)

K= 3.47 ×10^-10

Answer:

Carbon is generally stable across a variety of oxidation states like +4, -2, 0,  and +4. While Pb is generally only stable in the +2 oxidation state

Explanation:

There are two main reasons for this, first is the increase in metallic character as you go down the group, this tends to increase the stability of the +2 oxidation state over the +4 oxidation state. A good example of this is the oxides of lead. Pb can form two oxides PbO and PbO2. PbO, having an oxidation state of +2 is much more stable than PbO2 with an oxidation stae of +4. PbO2 will readily decompose to form the more stable PbO. This is due to the inert pair effect, where Pb tends to hold it's S shell electrons closer thus making them harder to pull away, thus making the +4 oxidation state difficult to form.

I realize this probably isn't the simple explanation you were looking for, but the question itself is a complicated one to explain

Since carbohydrates are essential biomolecules the action of sugars fluctuates when enzymes consume substrates of glucose molecules.

Gas pressure is the pressure created by the collision of gas particles with an object. Inside the balloon, gas particles collide with the inner wall of the balloon. It's these collisions that keep the balloon inflated. When carbon dioxide gas fills the balloon, it inflates. The more gas produced, the bigger the balloon will inflate.

The chemical reaction between baking soda and vinegar will inflate the balloon as long as the baking soda and vinegar react. Force Balance: The pressure inside the inflated balloon is greater than the pressure outside. The balloon is stable because the expansion force due to the pressure difference balances the contraction force due to the surface tension of the rubber.

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We would expect to measure a pressure of approximately 75.25 kPa for the gas in the container at the higher temperature of 267 oC.

To determine the expected pressure of the gas in the container at the higher temperature, we can use the combined gas law, which relates the initial and final conditions of temperature and pressure in a fixed volume system. The combined gas law equation is given as:

(P1 * V1) / T1 = (P2 * V2) / T2

Where:

P1 = Initial pressure

V1 = Initial volume (which is fixed in this case)

T1 = Initial temperature

P2 = Final pressure (to be determined)

V2 = Final volume (which is fixed in this case)

T2 = Final temperature

In this scenario, the initial conditions are given as 3 oC (which is equivalent to 276 K) and 38.5 kPa. The final temperature is 267 oC (which is equivalent to 540 K). Since the volume is fixed, we can substitute the given values into the equation:

(38.5 kPa * V1) / 276 K = (P2 * V1) / 540 K

Simplifying the equation, we can cancel out V1:

38.5 / 276 = P2 / 540

Solving for P2:

P2 = (38.5 / 276) * 540 ≈ 75.25 kPa

Therefore, we would expect to measure a pressure of approximately 75.25 kPa for the gas in the container at the higher temperature of 267 oC.

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Answer:

Asumiendo

"M"

es una variable

|

Usar como

un número romano

en lugar de

Suponiendo la multiplicación

|

Uso una lista en lugar de

H x×100 M n

Figura geométrica

línea

Propiedad como función

Paridad

aun

Derivado

d/dx(H x×100 M n) = 100 H M n

Integral indefinida

integral100 H M n x dx = 50 H M n x^2 + constante

Integral definida sobre una hiperesfera de radio R

integral integral integral_(H^2 + M^2 + n^2 + x^2<R^2) 100 H M n x dH dM dn dx = 0

Integral definida sobre un hipercubo de longitud de borde 2 L

integral_(-L)^L integral_(-L)^L integral_(-L)^L integral_(-L)^L 100 H M n x dx dn dM dH = 0

Explanation:

The process of changing the Gibbs free energy if positive is always nonspontaneous

Gibbs Free Energy is one of the thermodynamic parameters that states whether the continuity of a reaction occurs spontaneously or not spontaneously. The equilibrium composition of a reaction is determined by DG° and K. The value of G will change as the chemical composition of the reactants changes to the products.

Gibbs free energy is denoted by G and expressed in the equation G = H – TS.

Gibbs Helmholtz equation:

ΔG = ΔH − TΔS

This equation is very useful in predicting the spontaneity of a process.

So if the process of changing the Gibbs free energy if it is positive then the process is always nonspontaneous

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The largest effect on the population of trout in Wisconsin was caused by the introduction of non-native species into the ecosystem.

The introduction of non-native species into an ecosystem can cause a disruption in the food chain, leading to a decrease in the population of native species. In Wisconsin, the introduction of non-native species such as the brown trout and rainbow trout has had a significant impact on the population of native brook trout.

The non-native species compete with the native brook trout for food and habitat, which has led to a decrease in the brook trout population. This highlights the importance of preserving the natural balance of ecosystems and avoiding the introduction of non-native species.

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A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The heat is releases so the reaction is exothermic reaction.

a) since the reaction is releases the heat , so it is exothermic reaction.

b) the water temperature rises as heat flows in to the water.

c) as the heat will rises then the pressure will also rise the  piston move in the outward direction.

d) as the pistons moves in the outward direction the gas mixtures works  on surrounding.

e) the heat flows is the difference in the work done and is given as :

E = 390 kJ - 117kJ

   = 273 kJ , the heat is releases by the reaction.  

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The distinctive signals that you would anticipate for each of the following substances in the diagnostic region of an ir spectrum are (b) O and (d) oh.

Developmental impairment known as autism spectrum disorder (ASD) is brought on by variations in the brain. It can be challenging for someone with ASD to engage in repetitive or constrained hobbies or interests, in addition to social interaction and communication. ASD sufferers may also move, pay attention, and learn in unconventional ways. The term "spectrum" alludes to how various people experience autism in a variety of ways; autism is a condition that is highly diverse. Autism is seen as a spectrum disorder because each autistic person experiences it differently. Some autistic people may require more care than others in order to live the lifestyles they desire.

There is no known cause or effective cure for autism spectrum disorder. By reducing the symptoms with autism spectrum condition and encouraging development and learning, therapy aims to enhance your child's functioning.

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The connection between increasing carbon dioxide and increasing temperature is: carbon dioxide absorbs heat from the sun and traps it in earth's atmosphere. Since the heat cannot escape, it causes the earth's temperature to increase which is the first option.

When carbon dioxide (CO₂) and other greenhouse gases are present in the atmosphere, they act as a natural blanket, allowing sunlight (solar radiation) to pass through and reach the Earth's surface. Some of this solar radiation is absorbed by the Earth's surface, while the rest is reflected back towards space as heat (infrared radiation). However, greenhouse gases like carbon dioxide have the property of absorbing and re-emitting infrared radiation.

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