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Refer to your periodic table. The orbital notation for Aluminum in the outer most shell would have how many electrons in the S orbital, and how many in the p orbital?
1 electron in the s orbital, and none in the p.
2 electrons in the s orbital. None in the p orbital
2 electrons in the s orbital and 1 in the p orbital

3rd step of the proposed mechanism must be slow in order to agree with this rate law in the reaction, h2 i2 => 2 hi , which is found to be half order in i2 and first order in h2.

Having the atomic number 1 and the letter H, hydrogen is the first chemical element. The lightest substance is hydrogen. Hydrogen has the formula H2 and exists as a gas under normal conditions. It burns easily and is non-toxic, tasteless, colorless, odorless, and odorless.

With approximately 75% of all normal matter made up of hydrogen, it is the most prevalent chemical in the universe. The majority of hydrogen in plasma stars like the Sun is hydrogen. Water and organic compounds are two examples of molecules that contain the majority of the hydrogen that exists on Earth.

One proton, one electron, and no neutrons are present in each atom of the most prevalent isotope of hydrogen (symbol 1H).

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Full question

Consider the reaction, H2 + I2 => 2 HI , which is found to be first order in I2 and first order in H2. Which step of the proposed mechanism must be slow in order to agree with this rate law?

I 2 => 2 I

I + H2 => H2I

H2I + I => 2 HI

1. 2

2. 3

3. 1

4. Either 2 or 3

When an organism's cells only have one set of chromosomes, the organism is said to be haploid. All organisms that reproduce sexually are diploid (having two sets of chromosomes, one from each parent). Only the egg and sperm cells in humans are haploid.

The term "diploid" describes an organism's cells having two full sets of chromosomes, with one chromosome from each parent present in each pair. Since humans are diploid, the majority of their cells have 23 pairs of chromosomes.

Distinguish between haploid and diploid.

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Answer:

8 1/3 m per second

Explanation:

You divide 250 by 30

Answer:

dividing the number of moles of each reactant

Explanation:

The most likely evidence of an energy transformation taking place when a wire that is twisted and turned breaks is as follows:

Thus, the correct option for this question is C.

Energy transformation may be defined as the process that significantly involves the conversion of one form of energy into another or the migration of energy from one place to another.

According to the context of this question, the wire is an electrical appliance that might be heated due to excessive usage. Due to this, the energy of motion which is known as kinetic energy gets transformed into thermal energy when its ends are broken.

Therefore, the correct option for this question is C.

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Answer: It is 6000 meters

Explanation:

You multiply the length value by 1000

The speed in number of meters per minute the spacecraft travel at the speed of 5.2 km per second is 3,12,000 meters per minute.

The speed is 5.2 km per second

We know that 1 kilometer per second is equal to 60000 meter per minute

So converting, we get 5.2×60000= 3,12,000 meters per minute

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Answer: Mitosis & meiosis

Explanation:

Answer:

I think it is cell division and mitosis

Explanation:

I hope this is right sorry if it isnt

Answer:

2,649,024,000

Explanation:

Multiply 72*60*24*365*70

Depending on the solubility at the temperature, 600 mL of saturated solution in NaCl must be prepare. Na₂HAsO₄ and Na₂SO₄ is the correct option.

The maximum amount of a chemical that will dissolve in a given amount of solvent at a given temperature is referred to as its solubility. Varying compounds have very different solubilities, which is a characteristic of a particular solute-solvent pair. The amount of a solute that dissolves in a specific volume of liquid is known as its solubility.

In terms of solubility, solute volume divided by solvent volume o

Saturated, unsaturated, and extremely saturated solutions are all possible.

The solubility of solutes increases as the temperature rises.

Depending on the solubility at the temperature, 600 mL of saturated solution in NaCl must be prepared.

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Answer:

C

Explanation:

Na2HAsO4 and Na2SO4

Answer:

Look up the periodic table and it will tell you what is what or you can ask for a hint and if that doesn't help look up "beryllium Atomic number, Mass number, Protons, electrons, and Neutrons." and do that for the rest of them.

Answer:

dw I gotchu

Explanation:

Uranium -236 (U-236) and the protons that are contained in the products are; krypton-36 and barium-56.

The term fission refers to the process in which the nucleus of a larger element is bombarded with a small particle such as a neutron which causes the  nucleus to become split. As the nucleus is split, smaller nuclei are able to be formed and this leads to the release of a tremendous amount of energy.

It should be known that fission reaction is one of the ways in which energy is released on a massive scale. While, it s true that fission reactions could be deployed on the negative scale such as in the production of the fission bombs, we should also know that it could be used positively to generate electricity in nuclear power plants.

The equation of the fission of uranium-235 begins with the addition of a neutron to the nucleus. What is then formed is uranium -236 (U-236). The protons that are contained in the products are; krypton-36 and barium-56.

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Answer:  iodine

Explanation:

Acids separate into ions in water or other aqueous solutions. These are in charge of how electricity conducts through them. In the absence of water, acids do not dissociate hydrogen ions. We can therefore state that acids exclusively create ions in watery solutions.

The polar H-A bond breaks due to the attraction between H and the O of water

An aqueous solution is one in which water serves as the solvent. Chemical equations typically illustrate it by adding (aq) to the appropriate chemical formula. For instance, Na +(aq) + Cl might be used to indicate a solution of table salt, or sodium chloride (NaCl), in water (aq).

Aqueous solutions are those in which water serves as the solvent. Even though water is a great solvent, not everything readily dissolves in it.

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The term is Allotropy

Which means that an element can exist in two or more forms with the same physical state but different structures

Using the molar mass of methane, there are 0.45 mole of methane in a 7.21 gram sample.

Molar mass is defined as the mass per unit mole of a substance.

MM = m/n

where MM = molar mass

m = mass

n = number of moles

The molar mass of methane is the sum of the molar masses of each element.

C : 12.011

H : 1.00784

CH4 : 12.011 + 4(1.00784) = 16.04236 g/mol

If a sample of methane has a mass of 7.21 grams, using the formula for the molar mass, solve for the number of moles.

MM = m/n

16.04236 g/mol = 7.21 g/n

n = 7.21 g/16.04236 g/mol

n = 0.4494351205 mol

n = 0.45 mol

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The force of attraction in between a cation with a valence of 2 and an anion with a valence of 3 would be 1.5 x [tex]10^{-10}[/tex] N.

According to Coulomb's law constant,

k = 9 x 10^9 Nm^2/C^2

The magnitude of the charge of an electron is

e= 1.6 x 10^9 C

The magnitude of the electric force (F) between the cation and the anion is given by

F = k Q^2/d^2

= k 2e^2/d^2

= (9 x 10^9 Nm^2/C^2) x 10^9 x {2x (1.6 x 10^-19)^2}/ (2.5)^2

= 1.5 x 10^-10 N

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Answer:

Magnesium reacts with hot water or water vapour to form Magnesium hydroxide and hydrogen gas.

Explanation:

The density of one redwood tree has almost the same density as a whole forest of redwood trees because density does not change with the shape, size, and mass of an object.

“Density is characterized as a mass of a unit volume of an object.”

d = m/v

Where m = mass and v = volume

It is expressed as gram per cubic centimeter.

Density is a property that does not depend upon the amount of substance present.

Thus, due to the fact that density is independent of an object's shape, size, and mass, one redwood tree has nearly the same density as an entire forest of them.

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Answer:

153.7kJ

Hope this helps :)

Every existing particle or an element has a certain amount of matter. Everything is made of atoms. The matter content of an atomic particle is called the atomic mass.

Atomic mass of two isotopes is given as:

X1 = 120.9038 amu with a natural abundance of 57.4%.

X2 = 122.9042 amu

Natural abundance for the X2 element would be 100 - 57.4% = 42.6%

Individual contribution made by both the elements would be product of their atomic masses and their natural abundance.

For X1

= 120.9038 * 57.4%.

= 120.9038 * 0.574

= 69.4 u

For X2

= 122.9042 * 42.6%

= 122.9042 * 0.426

=  52.8 u

Total mass = 69.4 u + 52.8 u = 121.8 u

Answer: The atomic mass of the element is 121.8 u.

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Yes, there is a pattern about the ionic charge because the left-side elements in the periodic table have cation ions whereas the right-side elements have anions.

Ions are formed because of the addition of electrons or the removal of electrons from an atom or molecules or other ions. Across a period, a nuclear charge of an atom increases while the electron shielding remains constant. A higher effective nuclear charge leads to greater attraction of the electrons which results in a smaller atomic radius of an atom. On the right side of the periodic table, elements accept electrons and become negative ions i.e. anions whereas elements on the left side lose an electron and become positive ions i.e. cations.

So we can conclude that due to the losing of the electron the left side of elements in the periodic table has a cation ion whereas the right side of elements has an anion because of the addition of electrons.

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The four-stroke engine cycle is defined by the following steps air and fuel intake, compression and ignition, combustion and expansion, and exhaust.

The correct option is B.

A four-stroke engine cycle is a style of engine in which the piston ignites internal combustion.

The entire piston travel along the cylinder is referred to as a stroke in an engine. The order in which the processes in the engine occur is as follows:

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The complete question is-

Which of the following sequences describes how a four-stroke engine cycle powers the engine?

A. Expansion, air and fuel intake, compression and ignition,

extinguishment

B. Air and fuel intake, compression and ignition, combustion and

expansion, exhaust

C. Hydrogen and fuel intake, expansion, compression and ignition,

exhaust

D. Contraction, compression and ignition, air and fuel intake, exhaust

The energy and the wavelength of the photon would be 1.3252  ×10⁻¹⁴ Joules and 150 nanometers respectively.

It can be defined as the number of cycles completed per second.It is represented in hertz and inversely proportional to the wavelength.

C=λν

λ = c / ν

Wavelength = 3×10⁸ /  2.00 x 10¹⁹

                    =1.5  x 10⁻¹¹

                    =150 nanometers

By using the Planck's energy formula,

E = hν

Where h is the Planck's constant with a value of 6.626×10⁻³⁴.

The energy of the Photon = 6.626×10⁻³⁴ ₓ  2.00x 10¹⁹

The energy of the Photon = 6.626×10⁻³⁴ ₓ  2.00 x 10¹⁹

                                            =1.3252  ×10⁻¹⁴ Joules

Thus, the energy and the wavelength of the photon would be 1.3252  ×10⁻¹⁴ Joules and 150 nanometers respectively.

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The likely outcome if mitochondria are exposed to high levels of cyanide will be that the cyanide will prevent movement of electrons along the electron transport chain.

The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular). Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria (ATP).

More than 90% of the energy in your body's cells is produced by mitochondria, which act as batteries in the cells. In high-energy-demanding organs including your heart, liver, muscles, and brain, mitochondria play a critical role. Mitochondria make about 25% of liver cells and 40% of heart muscle cells, respectively.

The unique compartments (organelles) in human cells called mitochondria are well recognised for acting as energy producers by disassembling food molecules and producing ATP, a fuel for the remainder of the cell

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The complete question is ''When purified cytochrome oxidase is exposed to cyanide, the cyanide binds reversibly and with high affinity to the enzyme's active site. What will be the likely outcome if mitochondria are exposed to high levels of cyanide?

A. The cyanide will prevent movement of electrons along the electron transport chain.

B. The cyanide will block movement of protons across the inner mitochondrial membrane.

C. The cyanide will inhibit transfer of electrons from NADH to initiate electron transport.

D. The cyanide will prevent oxygen from reaching the mitochondrial matrix.

Ligand-gated ion channel is this process describing four transmembrane regions changes conformation as Gaba binds.

In addition to being a ligand-gated ion channel, the [tex]GABA_A[/tex] receptor ( [tex]GABA_A[/tex] R) is an ionotropic receptor. Aminobutyric acid (GABA), the main inhibitory neurotransmitter in the central nervous system, is its endogenous ligand.

The postsynaptic cell's [tex]GABA_A[/tex]  receptor opens up to chloride ions (Cl) and, to a lesser extent, bicarbonate ions (HCO3); this selective permeability is known as the  [tex]GABA_A[/tex]  receptor.

Depending on the membrane potential and the differential in ionic concentration, this may cause ionic fluxes across the pore. When the receptor is active, Cl will flow into the cell if the membrane potential is greater than the equilibrium potential, sometimes referred to as the reverse potential, for chloride ions.

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The molarity of the bromide ion, Br¯ in the solution is 0.3 M

Molarity is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:

Molarity = mole / Volume

Molarity = mole / Volume

Molarity of zinc bromide = 0.0225 / 0.15

Molarity of zinc bromide = 0.15 M

Dissociation equation

ZnBr₂(aq) -> Zn²⁺(aq) + 2Br¯(aq)

From the balanced equation above,

1 mole of ZnBr₂ contains 2 moles of Br¯

Therefore,

0.15 M ZnBr₂ will contain = 0.15 × 2 = 0.3 M Br¯

Thus, the molarity of bromide ion, Br¯ in the solution is 0.3 M

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100g of NaNO3 will dissolve in 100 grams of water

A homogeneous mixture of solutions of one or more solutes in a solvent. Adding sugar cubes to your tea or coffee is an example of a common solution. The ability of a sugar molecule to dissolve easily is called solubility. The term solubility can therefore be defined as the property of a substance (solute) to dissolve in a particular solvent. A solute is a substance that is either a solid, liquid, or gaseous solution in a solvent.          

Here it is given that in 100g of water at temperature 35°C the amount of NaNO3 will dissolve is 100g we get it from the solubility curve

The graphical relationship between solubility and temperature is called the solubility curve. A solubility curve shows the change in solubility of a solid at different temperatures in a solvent. In the figure, temperature variation is plotted on the x-axis and solubility is plotted on the y-axis.

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Amount of tin in the sample is 2.2837 gm and its mass percentage in the rock is 22.837%

I₃⁻ (aq) +  Sn⁺² (aq) →  Sn⁺⁴ (aq) + 3I⁻

1 mol         1 mol

mol of NaI₃   = 34.60 mL × 1 L / 1000 mL × 0.5560 mol / L

                    = 19.2376 × 10⁻³ mol

∵ 1 mol of Sn²⁺ = 1 mol of I₃⁻

∴ mol of Sn²⁺ = 19.2376 × 10⁻³

∴ mass of Sn in sample = mol of  Sn²⁺ × molar mass

                                       = ( 19.2376 × 10⁻³ mol ) × 118.71 gm/mol

                                       = 2.28369 gm

                                       = 2.2837 gm

∴ % of tin in sample = (mass of tin) / (mass of sample ) × 100

The mass percent of a solution is defined as the ratio of the mass of solute that is present in a solution, relative to the mass of the solution

                                 = 2.2837/10 × 100

                                 = 22.837 %

Thus we can conclude that amount of tin in the sample is 2.2837 gm and its mass percentage in the rock is 22.837%

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