Which of the following are elements in this equation: 2H2O2 (aq) → 2H2O (l) + O2 (g)?

Check all that apply:

A. O
B. g
C. Aq
D. H

Explanation:

Regeneration is a type of asexual reproduction in which the organism is capable of regrowing certain body parts.

Answer: Regeneration is defined as organism's ability to regrow damaged or lost body parts. It is a type of asexual reproduction which is shown by many fully differentiated organisms. Organism such as Hydra uses regenerative cells for reproduction in the process of budding. The young Hydra gets its nourishment from the parent.

Explanation:

Answer:

amine

Explanation:

We have to bear in mind that amines are basic compounds. This idea will be very important in attempting to answer this question.

So, when she adds 5% HCl solution in order to extract the organic layer, the amine forms a hydrochloride salt which is contained in the aqueous layer.

The addition of a base such as NaOH leads to the formation of a white precipitate of the amine.

Answer:

Two types of reaction

Explanation:

Alkanes undergo only substitution reactions but alkenes and alkynes undergo both substitution and addition reactions

Answer:

The type of force is known as cohesive force

Explanation:

sodium has a positive charge and chlorine has a negative charge a negative and a positive charge you automatically for an ionic bond therefore the chlorine has to have a negative one charge

Answer:

the earth would be covered in ice and we would not be able to survive as there is not natural insulation

Answer: The given elements are arranged in order of increasing ionization energy as Pb < Sn < Ge < Si < C.

Explanation:

The amount of energy required to remove a loosely bound electron from an isolated neutral gaseous atom is called ionization energy.

Larger is the size of an atom more easily it will lose its valence electrons. Hence, less will its ionization energy.

Whereas smaller is the size of an atom more energy will be required to pull out the electron. Hence, more will be its ionization energy.

This means that on moving down a group ionization energy decreases and on moving along a period from left to right the ionization energy decreases.

The given elements are C, Ge, Pb, Si, and Sn. All these elements belong to group 14 of the periodic table.

Therefore, these elements are arranged in order of increasing ionization energy as follows.

Pb < Sn < Ge < Si < C

Thus, we can conclude that given elements are arranged in order of increasing ionization energy as Pb < Sn < Ge < Si < C.

Answer: A volume of 2997 liters of fluorine gas is needed to form 999 L of sulfur hexafluoride gas if the given reaction takes place at 2.00 atm and 273.15 K.

Explanation:

The given reaction is as follows.

[tex]S(s) + 3F_{2}(g) \rightarrow SF_{6}(g)[/tex]

This show that 3 moles of fluorine is reacting to give 1 moles of sulfur hexafluoride.

According to the ideal gas formula,

PV = nRT

This means that volume of a gas is directly proportional to the number of moles. Hence, volume of fluorine required is calculated as follows.

[tex]3 \times 999 L\\= 2997 L[/tex]

Thus, we can conclude that a volume of 2997 liters of fluorine gas is needed to form 999 L of sulfur hexafluoride gas if the given reaction takes place at 2.00 atm and 273.15 K.

Answer:

Charles's law states that the volume of a given amount of gas is directly proportional to its temperature on the kelvin scale when the pressure is held constant

The volume of a given gas sample is directly proportional to its absolute temperature at constant pressure (Charles's law). The volume of a given amount of gas is inversely proportional to its pressure when temperature is held constant (Boyle's law)

Explanation:

~Hope this helps

Answer:

B 1.17

Explanation:

There is .02 mols of nacl in a .4M solution

so you multiply by the molar weight of NaCl (58.44)

Answer:

tic

Explanation:

because it is my answer okay

Answer:

5.5 atm

Explanation:

Step 1: Calculate the moles in 2.0 L of oxygen at STP

At STP, 1 mole of an ideal gas occupies 22.4 L.

2.0 L × 1 mol/22.4 L = 0.089 mol

Step 2: Calculate the moles in 8.0 L of nitrogen at STP

At STP, 1 mole of an ideal gas occupies 22.4 L.

8.0 L × 1 mol/22.4 L = 0.36 mol

Step 3: Calculate the total number of moles of the mixture

n = 0.089 mol + 0.36 mol = 0.45 mol

Step 4: Calculate the pressure exerted by the mixture

We will use the ideal gas equation.

P × V = n × R × T

P = n × R × T / V

P = 0.45 mol × (0.0821 atm.L/mol.K) × 298 K / 2.0 L = 5.5 atm

Answer:

Strong Base

Explanation:

sodiumtrioxocarbonate(IV) Na2CO3 exists in various forms such as; an anhydrous form or in a crystalline form. Usually, the manufacturing process of sodiumtrioxocarbonate(IV) Na2CO3 is known as the Solvay process.

Now, upon reaction, Na2CO3 reacts to yield CO⁻₃. That appears to be a conjugate base of a weak acid. Thus, the occurrence of the removal of H⁺ resultt into Carbonic acid, i.e. a Strong Base.

Answer:

The molecular formula for Potassium Carbonate is K2CO3. The SI base unit for amount of substance is the mole. 1 grams Potassium Carbonate is equal to 0.0072356020563581 mole. Note that rounding errors may occur, so always check the results.

Explanation:

The molecular formula for Potassium Carbonate is K2CO3. The SI base unit for amount of substance is the mole. 1 grams Potassium Carbonate is equal to 0.0072356020563581 mole.

A: ionic bond,   you know why becasue it is

Answer:

Alkene

Explanation:

Took the test.

The correct answer is Option (A) Alkene.

Learn more about Alkenes below

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Answer:

0.011 moles

Explanation:

Applying,

PV = nRT.................... Equation 1

Where P = Pressure, V = Volume, n = number of moles, R = Molar gas constant, T = Temperature.

Make n the subject of the equation

n = PV/RT.................. Equation 2

From the question,

Given: P = 105 kPa = (105×0.00986923) = 1.036 atm, V = 250 mL = 0.25 L, T = 23 °C = (273+23) = 296 °C

Constant: R = 0.082 atm.dm³/K.mol

Substitute these values into equation 2

n = (1.036×0.25)/(0.082×296)

n = 0.011 moles

Answer:

d

Explanation:

i just did it

The  functional group in the following molecule CH₃CH₂OCH₂CH₃ is ether.

Functional group is defined as a substituent or group of atoms or an atom which causes chemical reactions.Each functional group will react similarly regardless to the parent carbon chain to which it is attached.This helps in prediction of chemical reactions.

The reactivity of functional group can be enhanced by making modifications in the functional group .Atoms present in functional groups are linked to each other by means of covalent bonds.They are named along with organic compounds according to IUPAC nomenclature.

Functional group inter conversion is also possible by retro -synthesis.In some cases , functional groups can be charged molecules.

Learn more about functional group,here:

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Answer:

The Milky Way

Explanation:

Answer:

Your answer is the Milky WAy!

Brainliest?

Answer:

The approximate age of the igneous rock is [tex]7.042\times 10^{6}[/tex] years.

Explanation:

Chemically speaking, the Uranium-235 decays to form Lead-207 throughout time. All isotopes decay exponentially by means of the following model:

[tex]m(t) = m_{o}\cdot e^{-\frac{t}{\tau} }[/tex] (1)

In addition, we can determine the time constant of the former isotope in terms of its half life, that is:

[tex]\tau = \frac{t_{1/2}}{\ln 2}[/tex] (2)

Where:

[tex]m_{o}[/tex] - Initial mass of Uranium-235, in atoms.

[tex]m(t)[/tex] - Current mass of Uranium-235, in atoms.

[tex]\tau[/tex] - TIme constant, in years.

[tex]t_{1/2}[/tex] - Half-life of Uranium-235, in years.

Please remind that a 1 : 1 ratio of Uranium-235 to Lead-207 atoms means that current mass of Uranium-235 is a half of its initial mass. If we know that [tex]m(t) = 0.5\cdot m_{o}[/tex] and [tex]t_{1/2} = 7.04\times 10^{8}\,yr[/tex], then the approximate age of the igneous rock is:

[tex]\tau = \frac{7.04\times 10^{8}\,yr}{\ln 2}[/tex]

[tex]\tau \approx 1.016\times 10^{9}\,yr[/tex]

[tex]t = -\tau \cdot \ln \left(\frac{m(t)}{m_{o}} \right)[/tex]

[tex]t = -(1.016\times 10^{9}\,yr)\cdot \ln \frac{1}{2}[/tex]

[tex]t \approx 7.042\times 10^{6}\,yr[/tex]

The approximate age of the igneous rock is [tex]7.042\times 10^{6}[/tex] years.

Answer:

The difference in the properties of water can be attributed to physical changes to the hydrogen and oxygen atoms on a subatomic level. The properties of the gases are combined to give water its properties. When substances chemically combine, products with completely different properties form.

Answer:

They are composed of different atoms

Explanation:

The guy above me said it better :|

Answer:

Explanation:

Well you didn’t send a picture of the question but h2O is water so. If the questions answer has a option of water then pick that one

The complete question is shown in the image attached to this answer.

Answer:

C

Explanation:

Let us quickly remember that the EMF of a cell under non standard conditions in given by the Nernst equation.

This equation states that;

E = E°cell - 0.592/n log Q

Where

E = EMF under non standard conditions

E°cell= standard EMF of the cell

n = number of electrons transferred

Q = reaction quotient

If the reaction quotient is greater than 1 then cell potential is less than the standard cell potential.

The cell that generates the lowest cell potential is the cell depicted in option C because Q has the greatest positive value(Q<1).

The cell potential is the redox potential that measures the acquired to lost electrons at the electrodes. The lowest cell potential is generated by cell C with 0.5 M.

EMF is the electromotive force that is the total of the electric potential difference produced at the half cells of the galvanic cell (electrochemical cell).  

EMF of the cell is given as,

[tex]\rm E = \rm E^{\circ} - \dfrac{0.592}{n}\; log Q[/tex]

Here, E is the electromotive force, [tex]\rm E^{\circ}[/tex] is the standard EMF, n is the number of the transferred electrons, and Q is the reaction quotient.

When the reaction quotient (Q) is greater than 1 then, cell potential will be less than standard cell potential.

Therefore, cell C with 0.5 M and Q > 1 is a similar cell.

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Answer:

Purify drinking water of unwanted

Hope this helps! :D

Answer:

D). Taxonomy.

Explanation:

'Taxonomy' is described as the process or the science of finding, describing, classifying, and naming different organisms. It is characterized as the technique of classification of animals, micro-organisms, plants, etc. into different categories or hierarchies. It has primarily been divided into eight distinct types like kingdom, species, order, family, etc.  

Astronomy is associated with the study of the physical universe while the economy is defined as the study of efficient utilization of resources and identification is the process of recognizing an object. Thus, option D is the correct answer.

Answer:

magnesium  

Explanation:

because zinc does not react with water because it too forms a protective layer of insoluble.