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Cobalt-60 is comprised of 27 protons, 33 neutrons, and 27 electrons. Nuclear reactors are used to artificially create it.

A radioactive isotope containing cobalt with something like a half-life of 5.2713 centuries is called cobalt-60 (60Co). Nuclear reactors are used to artificially create it. Neutron irradiation of bulk material of the monoisotopic as well as mononuclidic cobalt element 59 Co is necessary for deliberate industrial manufacture.

The accidentally generated 60 Co in the latter instance (inside the absence of additional cobalt) is mostly the product of many phases involving neutron activation on iron isotopes inside the reactor. Cobalt-60 is comprised of 27 protons, 33 neutrons, and 27 electrons.

Therefore,  cobalt-60 is comprised of 27 protons, 33 neutrons, and 27 electrons.

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Answer:

I assume that you mix the 25 mL alcohol with 45 mL water.

The answer depends on a big IF : IF the volumes are additive. Very often volumes of liquids are not additive

Total volume = 70 mL

isopropyl alcohol %(v/v) = 25mL/ 70 mL * 100 % = 35.7% v/v

The answer should have only 2 significant digits: 36%v/v

Explanation:

Hope it helps

The percent by volume  of a solution formed by mixing 25 ml of isopropanol with 45 ml of water is 35.71% which is rounded off to 36%.

Percent volume is defined as the concentration of a particular solute which is measured in terms of volume present in a solution. The volume of the solution is present in the denominator which indicates the total volume of all components .

It is expressed as,

percent volume= volume of solute/volume of solution×100

It is used for solutions which are made by mixing two components . It is one of the ways of expressing concentrations of mixture with a dimensionless quantity.

Percent volume of the given solution is calculated by substituting the given values in the formula like, 25/70×100=35.71%

Thus, the percent by volume concentration of the solution is 35.71%≈36%.

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Answer:

Catalysts help in increasing rates of reactions

Answer:

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Explanation:

Temperature. Usually reactions speed up with increasing temperature.

Answer:

They all have the same number of atoms

Explanation:

Which of the following has more atoms?

One mole of zinc

One mole of gold

One mole of silver

One mole of magnesium contians  

O They all have the same number of atomst

a mole of anything contains Avogadros number of 6.022X10^23  things

which has the greatest number of thing? a dozen eggs, a dozen cookies, a dozen pizzas?

a dozen is a number means 12

a mole is a number that that means 6.022 X 10^23 you calculate the molar mass from the chemical formula, but every j mole contains 6.022X10^23

particles.

just like every dozen contains 12

so

They all have the same number of atoms

Answer:

K.E =1/2 Mass×(velocity)2

Explanation:

1/2mass=K.E/Velocity 2

1/2mass=105/(10m/s)2

1/2mass=105/100m/s

1/2mass=21/20m/s

mass=21/20m/s ×2

mass=21/10

mass=2.1 Kilogram (put the value)

Answer: umm, yes? DUH

Explanation: touch some falling out of a tap

Answer:

Water is wet,

Explanation:

in the sense of being a liquid which flows easily, because its viscosity is low, which is because its molecules are rather loosely joined together. So it is wet.

Answer:

It changes from a liquid to a gas. I hope this helps you! :D

The reason why 1-hydroxy-2-methyl-5-isopropylbenzene is not the correct systematic name for carvacrol is because the substituents are not listed alphabetically.

IUPAC nomenclature provides the correct and acceptable system of naming organic compounds which are internationally acceptable among scientists.

According to the rules of IUPAC nomenclature, compounds are named in alphabetical order. The names of the locants are ordered in such a way that they have the lowest number. Following IUPAC nomenclature, the correct name of the compound ought to be, 1-hydroxy-5-isopropyl-2-methylbenzene.

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Answer:

A. The neutrons and electrons are in the wrong place.

Explanation:

The atom's nucleus contains both protons and neutrons, whilst the electrons are arranged in shells around the nucleus.

Explanation:

Multiply the given moles times the molar mass of neon, 20.180 g/mol (periodic table).

Answer:

Multiply the supplied moles by 20.180 g/mol, the molar mass of neon (periodic table).

Explanation:

Answer:

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Answer:

B. Their atomic numbers increase by 1 from left to right

Answer: Using the standardized NaOH solution in the previous question, the titration of 5.00 mL of vinegar required 42.25 mL of NaOH. What is the % of acetic acid in the vinegar? Concentration of NaOH from previous question= 0.0986 M. David C.

Explanation:

Please mark as brainliest for me.Thank you so much

The percentage of acetic acid in vinegar is 4.988 %., When the titration of 5.00 mL of vinegar required 42.25 mL of NaOH.

Titration is defined as the process of chemical analysis method in which the amount of a sample's constituent is determined by mixing a precisely measured amount of the desired constituent with another material in a precise, known proportion. The equivalence point, or the point at which chemically equivalent amounts of the reactants have been combined, is to be detected by the titration.

According to the titration principle, V1=the volume of acetic acid and V1S1=V2S2

S1 is the acetic acid's strength

V1 = 42.25 ml * 0.0986 M / 5 ml = 0.833 M where V2 = Volume of NaOH S2 = Strength of NaOH

Hence, 1000 ml Vinegar contains 0.833 moles of acetic acid per 100 ml of vinegar (0.0833*60). G=4.998 grams of acetic acid

The amount of acetic acid in vinegar is 4.988%.

Thus, the percentage of acetic acid in vinegar is 4.988 %., When the titration of 5.00 mL of vinegar required 42.25 mL of NaOH.

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In human beings fertilization occurs in fallopian tube

Answer:

Fertilization usually takes place in a fallopian tube that links an ovary to the uterus. If the fertilized egg successfully travels down the fallopian tube and implants in the uterus, an embryo starts growing.

Answer:

WHAT DID YOU INCLUDE IN YOUR RESPONSE

Answer:

You can separate the Iodine from the water and convert the potassium iodide into elemental Iodine by mixing 1 part of a 5–13% solution of Iodine/Potassium Iodide with 1 part distilled water and 1 part 3% Hydrogen Peroxide Solution followed by 1/12 part 32.45% hydrochloric (Muriatic) acid.

Answer:

Explanation:

1.c

2.j

3.h

4.b

5.f

6.d

7.a

8.i

9.e

10.g

Considering the definition of empirical and molecular formula, the pair of compounds C₄H₁₀ and C₂H₅ has the same empirical formula.

The empirical formula is the simplest expression to represent a chemical compound and indicates the elements that are present and the minimum proportion in whole numbers that there are between their atoms. This formula is also known as the "minimum formula".

On the other side, the molecular formula is the chemical formula that indicates the number and type of different atoms present in the molecule. But unlike the chemical formula, it shows the actual number of atoms that make up a molecule.

In this case, you can observe that if you divide the amount of each element by 2 in compound C₄H₁₀, you get C₂H₅, which is the empirical formula of the compound.

Finally, the pair of compounds C₄H₁₀ and C₂H₅ has the same empirical formula.

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Explanation:

Refer to the attachment

Extrashots:-

C4H8N2O3 is called asparagine .

Answer:

8

Explanation:

The molecular formula shows the number of atoms present. The molecular formula of the gas is most likely ClO2.

In terms of gas density and molar mass, the ideal gas equation can be written in the form; PM = dRT

Where;

P = pressure of the gas

M = molar mass of the gas

d = density of the gas

R = molar gas constant

T = temperature of the gas

Making the molar mass of the gas the subject of the formula;

M = dRT/P

d = 2.875 g/L

R = 0.082 atmLmol-1K-1

T =  11°C + 273 = 284 K

P = 750.0 mm Hg or 0.99 atm

Substituting values;

M =  2.875 g/L ×  0.082 atmLmol-1K-1 × 284 K/ 0.99 atm

M = 67.6 g/mol

The gas is most likely ClO2.

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Answer:

location 3...........

If the number of neutrons in the nucleus of the atom is 41, and the atomic number is 40, the mass number of that atom will be 81

Mass number is the sum of the number of protons which is the atomic number and neutrons of an atom.

It is represented using the letter ‘A.’

Mass number = atomic number + neutrons

We have the atomic number as 40 and the number of neutrons as 41

The mass number = 40 + 41 = 81

Therefore, the mass number of the atom will be 81

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According to the molecular geometry, bonds in carbon tetrachloride are polar and that in nitrogen are non polar.

Molecular geometry can be defined as a three -dimensional arrangement of atoms which constitute the molecule.It includes parameters like bond length,bond angle and torsional angles.

It influences many properties of molecules like reactivity,polarity color,magnetism .The molecular geometry can be determined by various spectroscopic methods and diffraction methods , some of which are infrared,microwave and Raman spectroscopy.

They provide information about geometry by taking into considerations the vibrational and rotational absorbance of a substance.Neutron and electron diffraction techniques provide information about the distance between nuclei and electron density.

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Answer:

ako po because I'm pilipino

Explanation:

HAHAH same too

Answer:

here is your answer

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