why is the minimum internal temperature for poultry set higher than that for beef or fish?

The Atomic Number (Z) indicates the number of protons in an atom of an element. If the atom is neutral then the number of protons will be equal to the number of electrons. So the atomic number can also indicate the number of electrons.

Mass Number (A) = Number of protons + Number of Neutrons

Atomic Number (Z) = Mass Number (A) - Number of Neutrons

Atomic number = number of protons = number of electrons  ⇒ neutral atoms

Atomic number - positive charge = number of electrons ⇒ cation

Atomic number + negative charge = number of electrons ⇒ anion

You can also see the periodic system

A. Indium (In)

B. proton = electron = 27

C. proton = electron = 73

D. proton = electron = 49

E=F. atomic mass - neutron = 137 - 81 = 56

G. atomic mass-proton = 115- 49 = 66

H. 181-73 = 108

Answer:

I know I´m kinda late but....

Explanation:

A. In

B. 27

C. 73

D. 49

E. 56

F. 54

G. 66

H. 108

I. 32

Answer: I don't have the ability to conduct physical experiments or obtain solutions. However, I can provide you with some general information about the properties of CoCl2.6H2O in EtOH and H2O.

Cobalt chloride hexahydrate (CoCl2.6H2O) is a crystalline solid that is soluble in both water and ethanol. When dissolved in water, it forms a pink-colored solution due to the presence of hydrated cobalt ions. In contrast, when dissolved in ethanol, it forms a blue-colored solution due to the formation of a complex between cobalt ions and ethanol molecules.

The addition of CoCl2.6H2O to water or ethanol should result in the formation of a homogenous solution with a characteristic color. The color of the solution will depend on the solvent used and the concentration of the CoCl2.6H2O solution.

One mole of carbon dioxide has a molar mass of 44.01 g/mol. Thus, 0.0458 moles of carbon dioxide would be equal to:0.0458 mol CO2 x 44.01 g/mol = 2.016 g CO2Therefore, 0.0458 moles of carbon dioxide would produce 2.016 grams of carbon dioxide.

The diagram is therefore incomplete and does not provide a complete representation of the behavior of a gas according to the kinetic molecular theory. The first postulate states that gas molecules are in constant random motion, which is not depicted in the diagram that does not have any gas molecules shown.

A complete diagram of a gas according to the kinetic molecular theory should show gas molecules in constant motion, colliding with each other and the walls of the container, with no attractive forces between the molecules. In conclusion, the first postulate of the kinetic molecular theory of gases is not represented in the diagram that does not have any gas molecules shown.

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Answer: Group 11

Explanation:

Answer:

There are actually five, and there's an easy way to remember them.

Physical Description

Action

Inner thoughts

Reactions

Speech

P.A.I.R.S

This will basically help you with any story you come up with

In this question, we have to calculate the theoretical yield of AlCl3, based on the following reaction:

2 Al + 3 Cl2 -> 2 AlCl3

In this reaction, we have the following molar ratios:

2 Al = 3 Cl2

2 Al = 2 AlCl3

3 Cl2 = 2 AlCl3

We have as the initial mass of the reactants:

1.0 grams of Al and 1.0 grams of Cl2

We need to find the limiting and excess reactants before the theoretical yield, and in order to find the limiting and excess reactants, we need to calculate the number of moles we have in 1.0 grams of each

Starting with Al, the molar mass of Al is = 27g/mol

27g = 1 mol of Al

1.0g = x moles of Al

27x = 1

x = 0.37 moles of Al in 1 gram of Al

According to the molar ratio between Al and Cl2, 2 moles of Al = 3 moles of Cl2, what if we have 0.37 moles of Al:

2 Al = 3 Cl2

0.37 Al = x Cl2

2x = 1.11

x = 1.11/2

x = 0.55 moles of Cl2 will be needed to react with 0.37 moles of Al

The molar mass of Cl2 is 70.9g/mol:

70.9g = 1 mol of Cl2

1.0g = x moles

70.9x = 1

x = 1/70.9

x = 0.014 moles

We have 0.014 moles of Cl2 in this reaction, and we needed 0.55 moles of Cl2, which means that Cl2 is the limiting reactant and Al is in excess

Using the number of moles of the limiting reactant, 0.014 moles, we will find the final mass of the product

First we need to know how many moles of AlCl3 we have, based on the molar mass between Cl2 and AlCl3, 3:2

3 Cl2 = 2 AlCl3

0.014 Cl2 = x AlCl3

3x = 0.028

x = 0.028/3

x = 0.009 moles of AlCl3

Now we have the number of moles of AlCl3, the molar mass is = 133.34g/mol

133.34g = 1 mol

x grams = 0.009 moles of AlCl3

x = 0.009 * 133.34

x = 1.20 grams of AlCl3

The theoretical yield of AlCl3 for 1.0 gram of Al and 1.0 gram of Cl2 will be 1.20 grams

Answer:

The statement is false.

Explanation:

The anion of a strong acid is a very weak base.

CH3 is the empirical formula for the compound.

A sample of a compound is determined to have 1.17g of Carbon and 0.287 g of hydrogen.

The number of atom or moles in the compound is

1.17 g C X  1 mol of C / 12.011 g C = 0.097411 mol of C.

0.287 g H x 1 mol of  H / 1 g H = 0.28474 mol H.

This compound contains 0.097411 mol of carbon and 0.28474 mol of Hydrogen.

So we can represent the compound with the formula C0.974H0.284.

Subscripts in formulas can be made into whole numbers by multiplying the smaller subscript by the larger subscript.

we can divide 0.284 by 0.0974.

0.284 / 0.0974 = 3.

So here, Carbon is one and hydrogen is 3.

We can write the above formula as a CH3.

Hence the empirical formula for the sample compound is CH3.

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The half-life of Carbon-14 is 5730 years. The animal die approximately 5730 years ago.

Radioactive decay is used to determine the age of ancient organic material in carbon-14 dating. Carbon-14 has a half-life of 5730 years, indicating that half of the carbon-14 will have decayed after 5730 years. This means is that after 5730 years, half of the amount of carbon-14 will have decayed, and after an additional 5730 years, this process continues until there is so little carbon-14 left that dating is impossible. Since carbon-14 decays in a predictable manner, the amount of carbon-14 present in the remains of a plant or animal can be used to calculate how long ago it died.

The half-life of carbon-14 can be used to determine when an animal died. Since carbon-14 has a half-life of 5730 years, we can use this information to estimate when an animal died. For instance, if we were to take a sample of organic material and measure the carbon-14 content to be half of what is present in living plants and animals, we would conclude that the sample is about 5730 years old. Therefore, it is estimated that an animal died approximately 5730 years ago.

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Answer:

i didnt get it right but theres the answer

Explanation:

Answer:

It's spiral for any of my study island people.

Explanation:

Answer:

The control variable in a comparison of cleaning teeth with baking soda and toothpaste would be the toothbrush used, as it is the constant factor in both conditions. The toothbrush should remain the same in both experiments to ensure that any observed differences in cleaning effectiveness are due to the baking soda or toothpaste and not the toothbrush.

When the child sits on the partially filled balloon, the pressure of the balloon increases. The pressure change is a doubling of the initial pressure, indicating a factor of 2 increase.

When the child sits on a partially filled balloon, the volume of the balloon decreases by half. According to Boyle's Law, which states that the pressure of a gas is inversely proportional to its volume at constant temperature, the pressure inside the balloon increases.

Let's consider the initial volume of the balloon as V and the initial pressure as P. When the volume decreases by half, it becomes V/2. Since the amount of gas remains constant, the pressure increases to maintain equilibrium. The new pressure can be denoted as P'.

According to Boyle's Law, P₁V₁ = P₂V₂, where P₁ and V₁ are the initial pressure and volume, and P₂ and V₂ are the final pressure and volume. Plugging in the values, we have P * V = P' * (V/2).

Simplifying the equation, we get P' = 2P. This means the pressure of the balloon increases by a factor of 2, or it doubles. So, the pressure change can be expressed as an increase of two times the original pressure.

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The group 12 elements have different properties than group 13 elements because both have different number of valence electron.

The electron present in valence shell is called valence electron.

The electronic configuration group 12 and group 13 is given below.

Electronic configuration Group 12 = (n-1)d10 ns2

Electronic configuration Group 13 = ns2np1

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The mass of acetylsalicylic acid in the tablet is 174 mg. If 9.11 mL of 0.106 M sodium hydroxide is required to titrate the acetylsalicylic acid in an aspirin tablet.

In order to calculate the mass of acetylsalicylic acid in the tablet, we need to use the balanced chemical equation for the reaction between sodium hydroxide and acetylsalicylic acid:

C9H8O4 + NaOH → NaC9H7O4 + H2O

From the equation, we can see that 1 mole of NaOH reacts with 1 mole of acetylsalicylic acid. Therefore, we can calculate the number of moles of acetylsalicylic acid in the tablet using the volume and concentration of NaOH used in the titration:

moles of NaOH = volume of NaOH (in L) x concentration of NaOH (in mol/L)

moles of NaOH = 9.11 mL / 1000 mL/L x 0.106 mol/L

moles of NaOH = 0.000966 mol

Since 1 mole of NaOH reacts with 1 mole of acetylsalicylic acid, the number of moles of acetylsalicylic acid in the tablet is also 0.000966 mol. Finally, we can calculate the mass of acetylsalicylic acid in the tablet using its molar mass:

mass of acetylsalicylic acid = moles of acetylsalicylic acid x molar mass of acetylsalicylic acid

mass of acetylsalicylic acid = 0.000966 mol x 180.16 g/mol

mass of acetylsalicylic acid = 0.174 g or 174 mg

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the molecular formula of the compound is (CH₂)₈, which simplifies to C₈H₁₆.

the molecular formula of a compound given its molar mass and empirical formula, we need to determine the factor by which the empirical formula must be multiplied to get the molecular formula.

The empirical formula CH₂ has a molar mass of approximately 14 (12 from C + 2 from H).

The factor by which we need to multiply the empirical formula to get the molar mass of 112 is 8 (112 /14 = 8).

The most straightforward whole-number ratio of the atoms in a compound is its empirical formula. In order to arrive at the smallest ratio possible, the subscripts in the chemical formula are divided by their greatest common factor.

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Answer: Thermal conductivity

Explanation:

The process of the heat being conducted through the rod is measured by thermal conductivity. Therefore, option (D) is correct.

Thermal conductivity can be described as the ability to conduct/transfer the heat of a given material. Generally, thermal conductivity can be denoted by ‘λ’ and ‘κ’. Substances with high thermal conductivity are useful in heat sinks and those with low thermal conductivity are used as thermal insulators.

The thermal conductivity of metal does show variation with an increase in temperature while alloys do not show considerable changes, implying that the heat conductivities increase with the increase in temperature.

When one end of a rod is heated, the atoms at that end start to vibrate more energetically and collide with nearby atoms. In this way, the energy passes from the hotter to cooler atoms in the rod. This process only happens as the rod is the thermal conductivity of the rod. When you are holding the rod, you feel the heat from the end.

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Answer:

Mira la explicación.

Explanation:

¡Hola!

En este caso, podemos encontrar facilmente el grupo al que pertenecen dichos elementos con números atómicos 8, 36 y 39 respectivamente mediante su búsqueda en la tabla periódica. Así, z=8 corresponde a oxígeno, z=36 a kriptón y z=39 a itrio.

Por otro lado, para saber el número de capas, debemos desarrollar la configuración electrónica para cada uno:

\(O: 1s^2,2s^2,2p^4\\Kr: 1s^2,2s^2,2p^6,3s^2,3p^6,4s^2,3d^{10},4p^6\\Y:1s^2,2s^2,2p^6,3s^2,3p^6,4s^2,3d^{10},4p^6,5s^2,4d^1\)

Con esto, vemos que oxígeno tiene dos capas, kripton cuatro capas e iritrio cinco, a lo que a oxígeno le faltan dos electrones para llenar dicha capa, a kripton ninguno y a iritrio nueve.

Saludos.

Answer:

15.05+7.75÷21×100=

Explanation:

total mass÷atomic nass×100

Answer:

solvent which contains very little of the substance being dissolved is called a dilute solution

Answer:

Combustion

Explanation:

A combustion reaction is a type of chemical reaction in which a compound and an oxidant are reacted to produce heat and a new product. The general form of a combustion reaction can be represented by the reaction between a hydrocarbon and oxygen, which yields carbon dioxide and water: hydrocarbon + O2 → CO2 + H2O.

The water changes from the gas to the liquid through the process of the condensation.

The Condensation is the process where the water vapor becomes the liquid. It is the reverse of the evaporation, where the liquid water becomes the vapor. The Condensation happens one of the two ways: The first is either the air will cooled to its the dew point or it will becomes so saturated with the water vapor that it cannot be hold any of the more water.

Thus, the condensation is the process in which the  water changes from the gas phase to the liquid phase.

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Metal solids tend to be good conductors because of the property of electron mobility.

Metal cations are the building blocks of metallic solids, and a delocalized "sea" of valence electrons holds them all together. Metallic solids are good conductors of heat and electricity because of the mobility of their electrons. Metal atoms bound together by metallic bonds form metallic solids, which are solids. These linkages act as expansive molecular orbitals that cover the entire solid.

The electrons in metallic solids are hence delocalized. They are not only linked together by two atoms in a sigma bond. Metals are effective heat and electricity conductors because they contain at least one free electron per atom, which means that it is not bound to any one atom and is therefore free to travel about the metal.

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Answer:

Single replacement

Explanation: Al is replacing Cu

Answer:

An element is a pure substance that cannot be broken down by any physical or chemical means.

A component that is not converted into another substance is known as an element. Each of the approximately 100 elements has a unique form of atom. Atoms with even more metals are present in the universe.

A chemical element is uniquely defined by its atoms, which are tiny pieces of substance. An atom is made up of a core nucleus and one or perhaps more negative charged electrons that orbit it. One or much more moderately heavy particles are present in the positive- charged nucleus.

The atom is made up of a small nucleus and orbiting electrons. Protons are found in the nucleus and have a dipole moment that is equivalent to the electron's electrostatic repulsion. Neutrons may also be present in the nucleus.

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The energy gained by water is 1254 J.

Given,

Mass, m = 10.0g

Initial Temperature = 20°C

Final Temperature = 50°C

Specific heat capacity, c = 4.18 J/g·°C

H = mcΔT

where,

ΔT = Final Temperature - Initial Temperature

ΔT = 50 - 20  

ΔT = 30 °C

Substituting the given values,

H = 10 * 4.18 * 30

H = 1254 J

Therefore, the energy gained by water is 1254 J.

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Filtration and evaporation are used to separate sand and salt mixture.

Separation of salt and sand mixture is as follows :-

In other words,  based on the fact that salt is soluble in water, while sand is not. So, you used the difference in solubility to separate a mixture of sand and salt.

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Answer: Filtration to collect the sand and distillation to collect the salt.

Explanation:

Answer: The butterfly effect

Explanation:

The pH of a solution is a measure of its acidity or basicity. The pH scale ranges from 0 to 14, with values less than 7 indicating acidity and values greater than 7 indicating basicity.

The hydronium ion concentration in a solution can be calculated using the formula pH = -log[H3O+]. In the given solution, pH = 2.547, so the hydronium ion concentration can be calculated as [H3O+] = 10^(-pH) = 2.08 x 10^(-3) M.

The label on an unknown bottle of acid says it has a concentration of 0.010 M and the measured pH is 2.00. Using the same formula as above, the hydronium ion concentration can be calculated as [H3O+] = 10^(-pH) = 1 x 10^(-2) M. This means that the acid is a strong acid since it is almost completely dissociated in water.

In a 0.010 M solution of different acids, the acid with the largest K value will have the lowest pH since it favors the formation of products and thus increases the concentration of hydronium ions. So, the acid with the highest K value is HCl (K = 1.3 x 10^6), followed by HBr (K = 8.7 x 10^5), and HI (K = 1.0 x 10^5).

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1.84 x 10^(-9) g (or 1.84 ng) of NaOH to give a pH of 11.5 in a 14.5 L tank of water.

To find the mass of NaOH needed to give a pH of 11.5 in 14.5 L of water, we first need to calculate the concentration of hydroxide ions (OH-) required to achieve that pH.

The pH of a solution is defined as the negative logarithm of the hydrogen ion (H+) concentration, so we can write:

\(pH = -log[H+]\)

We can rearrange this equation to solve for [H+]:

\([H+] = 10^(-pH)For a pH of 11.5, we have:[H+] = 10^(-11.5) = 3.16* 10^(-12) M\)

Since NaOH is a strong base that completely dissociates in water, we know that the concentration of hydroxide ions will be the same as the concentration of NaOH we add.

Therefore, we can calculate the amount of NaOH needed using the following equation:

\(moles of NaOH = volume of water (in L) * desired [OH-] concentration (in M)moles of NaOH = 14.5 L * 3.16 * 10^(-12) M = 4.59 * 10^(-11) mol\)

Finally, we can convert moles of NaOH to grams using the molar mass of NaOH:

\(mass of NaOH = moles of NaOH * molar mass of NaOHmass of NaOH = 4.59 x 10^(-11) mol* 40 g/mol = 1.84 * 10^(-9) g\)

Therefore, we need 1.84 x 10^(-9) g (or 1.84 ng) of NaOH to give a pH of 11.5 in a 14.5 L tank of water.

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