what will increase the rate of polymerization and decrease the activation energy necessary for further polymerization?

According to internet sources the Moon has an equatorial VectorStock radius of 1738.14 km and a polar radius of 1735.97 km and the miles do these numbers represent 2.17km and yes moon a perfect sphere

Miles is a unit of distance equal to 1760 yards or approximately 1.6 kilometers

Here given data is

Moon has an equatorial VectorStock radius of 1738.14 km and a polar radius of 1735.97 km then the miles are

1738.14 km - 1735.97 km = 2.17km

2.17 km miles do these numbers represent? Is the moon a perfect sphere

And the moon is the perfect sphere

Know more about miles

https://brainly.com/question/9719055

#SPJ1

Answer:

15 electrons

Explanation:

To calculate the volume percent of dioxane we will apply the following formula:

In this case, the solute will be dioxane, and the volume will be 69.3 mL.

To calculate the volume of solution we will sum both volumes:

Volume of solution = Volume of dioxane + Volume of Toluene

Volume of solution = 69.3 mL + 1300 mL

Volume of solution = 1369.3 mL

We are given all the data with a significant digit, therefore we must report the result also with a significant digit. So the answer will be.

The volume percent of dioxane in the solution is 5.1 %(v/v)

A process that could be represented by the letter A in the given diagram is fertilization. The correct option is D.

It goes through four stages: menstrual, regenerative, proliferative, and secretory. The cycle duration is the time it takes from the first day of one menstruation to the first day of the following menstruation; most usual cycles last 28 days, but it can range from 21 to 40 days.

The average cycle lasts 28 days; however, cycles can last anywhere from 21 to 35 days. The menstrual cycle is triggered by the rise and fall of chemicals in your body known as hormones.

Therefore, the correct option is D, fertilization.

To learn more about the reproductive cycle, refer to the link:

https://brainly.com/question/1388166

#SPJ1

1) First, let's calculate the molar mass of NaCl and CoCl₂:

Atomic mass of:

Na - 22.99 g/mol

Cl - 35.45 g/mol

Co - 58.93 g/mol

So for NaCl:

22.99 + 35.45 = 58.44 g/mol

Molar mass of NaCl = 58.44 g/mol

For CoCl₂:

58.93 + (2x35.45) = 129.83 g/mol

Molar mass of CoCl₂: 129.83 g/mol

2) Now let's find out the number of moles of each sample. For this, we use the following equation:

moles = mass / molar mass

NaCl:

mole = 116.8 / 58.44

mole = 1.999 moles of NaCl

CoCl₂:

mole = 259.7 / 129.83

mole = 2.000 moles of CoCl₂

3) To find the amount of particles, we use the Avogadro's constant. Avogadro's constant is a constant of proportion between the amount of matter and the number of entities that are linked to that amount. These entities can be atoms, molecules, ions, electrons, protons, neutrons.

In this case, we have the same number of moles, so we will have the same number of particles for both NaCl and CoCl₂.

Answer:

Explanation:

Arsenic is the the metalloid which has "five valence electrons" in the "fourth electron shell". Explanation: Metalloids are found between the metals and non-metals in the periodic table.

hope it helps

The temperature in the final pressure formation is 2201.13K and the change in the pressure is 8.2atm

It is given that the initial pressure of the gas P₁ is 3.4atm and the initial temperature is T₁ 644.4K the final pressure of the gas is 11.6 atm. To find the final temperature, According to Gay Lussac's Law,

P₁/T₁ = P₂/T₂

On substituting the values of P₁,T₁ and T₂ we get,

3.4/644.4 = 11.6/T₂

0.005276 = 11.6/T₂

T₂ = 11.6/0.005276

T₂ = 2201.13K

Therefore the final temperature T₂ is 2201.13K when the pressure is changed from 3.4 atm to 11.6 atm

Thus the pressure change is calculated by,

ΔP = P₂ - P₁

ΔP = 11.6 - 3.4

ΔP = 8.2 atm

The change in pressure is 8.2atm

To know more about Charles's Law click below:

https://brainly.com/question/16927784

#SPJ9

49 becase you multilpy it

Explanation:

Answer: It appears as though fresh water has a surface tension of 72.5 mN/m

Explanation: Since fresh water does not have a high concentration of salt, and pure fresh water has no salt at all, you are trying to find the value of surface tension at 0% salinity. At 0% salinity, the surface tension value is 72.5 mN/m

The bond formed between two nonmetals, which are usually very similar in their tendency to lose or gain electrons, is the covalent bond. This bond involves the sharing of one or more electron pairs between the two atoms.

What is covalent bond?

A covalent bond is produced by the equal sharing of electrons from both participating atoms. This sort of bonding involves a shared pair or bonding pair of electrons. The sharing of bonding pairs will ensure that the atoms reach stability in their outer shell, analogous to the atoms of noble gases.

Elements with very high ionisation energies are incapable of transmitting electrons, while elements with very low electron affinity are incapable of absorbing electrons.

Atoms of such elements tend to share electrons with atoms of other elements or atoms of the same element in such a way that both atoms achieve octet configuration in their respective valence shells and thus achieve stability. Covalent Bond refers to such a link formed by the sharing of electron pairs among distinct or similar kinds.

Learn more about covalent bond from given link

https://brainly.com/question/3447218

#SPJ4

To answer if a salt is formed between the reaction of a base and an acid, we need to remember that, if we react a strong acid and a strong base, such as HCl and NaOH, two products will be formed: the appropriate salt and water.

In the example above, we can write the reaction as:

HCl + NaOH -> NaCl + H2O

where a strong acid and a strong base react to form a salt (NaCl) and water (H2O).

Thus, we can say that, yes, a salt is formed when an acid and a base react between each other.

The reproductive part of plants is located in flowers.

The flowers are the reproductive part of a plant.

Stamens are the male reproductive part.

The pistil is the female reproductive part.

Process of reproduction in a plant:

To know more about  reproduction in a plant refer to:

https://brainly.com/question/24437919

Scientists refer to the long-term alteration in ocean chemistry caused by CO2 absorption from the environment as ocean acidification.

The reaction can be expressed as:

[tex]CO_{2}[/tex] + [tex]H_{2} O[/tex] → ([tex]H^{+}[/tex]) +. ([tex]HCO3^{-}[/tex]).

Ocean acidification is a process that happens when the water absorbs too much carbon dioxide. In the equation,  [tex]CO_{2}[/tex] represents carbon dioxide. The  [tex]CO_{2}[/tex] in the equation represents the water molecules in which the carbon dioxide reacts.

Ocean acidification is the term for a long-term decrease in the ocean's pH that is mostly brought on by the ocean's absorption of carbon dioxide (  [tex]CO_{2}[/tex]) from the atmosphere.

To know more about Ocean acidification

https://brainly.com/question/4090240

#SPJ1

Diamond's standard enthalpy is zero at 298 K and 1 atm of pressure.

To learn more about standard entropy change refer to:

https://brainly.com/question/14455841

#SPJ4

C₆H₁₂O₆   +    6O₂    --->   6CO₂   +   6H₂O, If 7.5 g of glucose react with 5.5 L of oxygen,  the limiting reagent is glucose.

The balanced reaction is given as :

C₆H₁₂O₆   +    6O₂    --->   6CO₂   +   6H₂O

mass of glucose = 7.5 g

molar mass of glucose = 180 g/mol

number of moles =mass / molar mass

                            = 7.5 / 180

                            = 0.041 mol

volume of oxygen = 5.5 L

density of oxygen = 1.42 g/ml

mass = density × volume

mass = 1.42 × 5.5

mass = 7.81

moles = mass / molar mass

           = 7.81 / 32

           = 0.244 mol

mass of reactant from each product:

now, glucose ,  mass of CO₂ = 0.041 × 6 × 44 = 10.84 g

oxygen, mass of CO₂ = 0.244  × 6 × 44  = 64.41 g

Since glucose gives the smaller amount of product glucose is a limiting reagent.

Thus, C₆H₁₂O₆   +    6O₂    --->   6CO₂   +   6H₂O, If 7.5 g of glucose react with 5.5 L of oxygen,  the limiting reagent is glucose.

To learn more about limiting reagent here

https://brainly.com/question/26905271

#SPJ1

Hot tea with lemon is classified as a homogeneous mixture as once the two components are mixed they maintain uniform composition through out the mixture.

The mixtures can be classified broadly into 3 types:

(on the basis of composition)

homogeneous

heterogeneous

colloids

Homogenous mixtures are those mixtures in which the composition of the mixture is uniform throughout the mixture.

Hetrogenous mixtures reffer to those mixtures where the composition of does not remain uniform through out the mixtures. These can consists two or more compounds in differet phases.

A colloid is a mixture of particles that are too big when compared to the atom but still are invisible to the direct eye. The particles present in a colloidal mixture range from 1 to 1000 nanometers in diameter

Hot tea with lemon is classified as a homogeneous mixture as once the two components are mixed they maintain uniform composition throughout the mixture.

Learn more about types of mixtures at:

brainly.com/question/28080949

Hydronium ion concentration increases by 100 fold on decreasing the pH of solution from 4 to 2.

In order to compute pH, the log of the hydronium ion concentration was used.

pH = -log [Hydronium ion concentration]

So, at pH 2.0 number of hydronium ions are 10^-2

And at pH 4.0 number of hydronium ions are 10^-4

By decreasing pH there will be 100 times more hydronium ions.

To know more about hydronium ions, click here

brainly.com/question/12047300

#SPJ4

An amino acid that forms a solution with a ph of 3.0 as it is dissolved in distilled water has a side chain with a carboxyl group.

A carbonyl and hydroxyl group are joined by a carbon atom to form a carboxyl group. The hydroxyl group is made up of oxygen and hydrogen bound together, whereas the carbonyl group is a carbon double-bonded to oxygen (O=H) (OH). The carboxyl functional group, also known as the carboxyl group, is produced when the carbon atom is attached to both the hydroxyl and carbonyl functional groups.

This characteristic enables this functional group to bind to a variety of molecules that are present in typical goods. As a result, a molecule made up of a carbonyl and a hydroxyl group joined by a carbon atom is described as having a carboxyl group.

To learn more about the carboxyl group, visit the link below:

brainly.com/question/12603276

#SPJ4

Answer:

This symbol indicates that hazardous products with this pictogram can cause certain health effects for example, skin irritation, eye irritation, and/or. skin sensitization.

Explanation:

Answer:

only the atoms present in the reactants can end up in the products.

Explanation:

Answer: Quadrant 1: (1/3, 2 1/3)

Quadrant 2: (-1 1/3, 3 1/3)

Quadrant 3: (-3, -10), (-3 1/3, -1 1/3)

Quadrant 4: (9, -1), (1 1/3, -1 1/3)

Explanation:

Graph these coordinates on an XY plane to visualize which quadrant they land in.

The silica content of magma derived from partial melting of an igneous rock is higher than the rock itself.

The composition of magma is depends upon the two factor : rock , that is melted to form the magma and the conditions in which magma is melted. In partial melting , some of the minerals are melted in the rock. The different minerals have the different melting points. The mineral which is higher in silica have lower melting point. so, Partial melting produce more silica as compared to the original one.

Thus, The silica content of magma derived from partial melting of an igneous rock is higher than the rock itself.

To learn more about rocks here

https://brainly.com/question/28543238

#SPJ1

Isotopes undergo radioactive decay because thermodynamics generally governs the situation. Every atom strives to have the greatest degree of stability. When the number of protons and neutrons in the atomic nucleus is out of balance, instability results in radioactive decay. In essence, the nucleus contains too much energy to keep all the nucleons together.

Radioactive decay a the spontaneous process through which an unstable atomic nucleus breaks into smaller, more stable fragments.

Three Types of Radioactive Decay:

Alpha Decay:

       When an alpha particle basically a helium nucleus with two protons and two neutrons is ejected, the parent's atomic number and mass number are reduced by two and four, respectively.

Beta Decay:

      A stream of electrons from the parent, known as beta particles, is released during beta decay, and a neutron in the nucleus is changed into a proton. The new nucleus has the same mass number, but an additional atomic number of one.

Gamma Decay:

        The atomic nucleus releases extra energy during gamma decay in the form of high-energy photons (electromagnetic radiation). The resultant nucleus takes on a more stable energy state while maintaining the same atomic number and mass number.

To know more about isotopes refer to:

https://brainly.com/question/16293329

Step 1: Balance the equation

To balance the equation it is necessary to have the same number of atoms of each element on both sides of the equation (reactant side and product side). Let's count the number of atoms of each element for the unbalanced equation: KClO3 -> KCl + O2

Reactant side:

K - 1

Cl - 1

O - 3

Product side:

K - 1

Cl - 1

O - 2

To balance the equation, we need to fix the number of atoms of O on the product side, let's add a 3/2 in front of it:

KClO3 -> KCl + 3/2 O2

The equation is balanced but 3/2 is not an integer. So let's multply all the equation by 2:

2 KClO3 -> 2 KCl + 3 O2

Now the equation is balanced.

A) To solve this, we need to use the ratio between O2 and KClO3. It is 3:2.

so:

3 moles of O2 ---- 2 moles of KClO3

x moles of O2 ---- 12 moles of KClO3

x = 18 moles of O2

We found the number of moles, the question asks us the number of molecules.

For this, we need to use the avogadro's constant:

6.022x10^23 molecules ---- 1 mol

x molecules ---- 18 moles

x = 1.1 x 10^25 molecules of O2

B) To solve this we use the ratio between KCl and KCl3. It is 2:2

So it is produced 4 moles of KCl when 4 moles of KClO3 react.

Answer:

Explanation:

Here, we want to get the mass of carbon (iv) oxide produced

From the question, we have the balanced chemical reaction stating that 2 moles of oxygen molecule produced 1 mole of carbon (iv) oxide molecule

The number of moles of carbon (iv) oxide produced from 7.34 mol oxygen is thus:

1 mole of carbon (iv) oxide contains 44 g

The mass in 3.67 moles will be:

Answer:

This reaction is reversible, and you will only get significant amounts of the free amine if you use a large excess of ammonia. The product as a nucleophile.

Explanation:

NH4NO3(s) ==> 2 H2O(g) + N2O (g) (balanced)

a) We need the molar masses for each compound:

NH4NO3 = 80.0 g/mol (ammonium nitrate)

H2O = 18 g/mol (water)

0.555 kg => 1 kg = 1000 g => 0.555 kg = 555 g

80.0 g NH4NO3 -------- 2 x 18 g H2O

555 g NH4NO3 -------- X = 250 g

Answer a): 250 g water

b) % yield of water

120. g of water = actual yield

250 g of water from a) is the theoretical yield

Therefore, the % yield:

% yield = (actual yield/ theoretical yield) x 100

% yield = 120. g water/250 g water x 100

% yield = 48 %

Answer b): % yield = 48 %

Answer:

archaeologists

Explanation:

Meteorologist: weather man

Paleontologist: a scientist who studies the history of life on Earth through the fossil record.

Agriculturalist: One who practices agriculture, a farmer, a gardener.

archaeologists: Archaeologists can work for research organizations, consulting and cultural resource management firms, government agencies, and museums.