what element am i ? i have 74 protons ?

2,2-Dimethyloctane is the correct name.

Eight C atoms make up the longest continuous carbon chain, hence the term "octane" for this molecule.

2,2-Dimethyloctane, a gasoline hydrocarbon byproduct of aerobic biodegradation.

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Answer:

On a periodic table, the columns of elements with similar properties are called groups

The relative atomic mass of hydrogen 1.00

The atomic mass of an element is the average mass of the atoms of an element measured in atomic mass unit

Here given data is

99.30% of H atoms

0.70% H atoms

So we have to calculate the relative atomic mass of hydrogen. = ?

So the relative atomic mass = (isotope abundance × isotope mass) + (isotope abundance × isotope mass)

Relative atomic mass = (99.30% × 1) + (0.70% × 1)

Relative atomic mass = 1.00

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Out of the given choices, C2H4 is an organic compound because it is a hydrocarbon. An organic compound is a chemical compound that contains carbon atoms bonded to other atoms, usually hydrogen, oxygen, and nitrogen, but also sulfur, phosphorus, and other elements.

Organic compounds are the basis of all living organisms and include important molecules such as proteins, nucleic acids, carbohydrates, and lipids. In contrast, H2O2, NaOH, and H2SO4 are inorganic compounds since they do not contain carbon-hydrogen bonds. H2O2 is a peroxide, NaOH is a base, and H2SO4 is an acid. These are important inorganic compounds used in various industries, but they are not organic.

H2O2 is a clear, colorless, and odorless liquid that is commonly used as a disinfectant and bleaching agent. It is an inorganic compound that does not contain carbon-hydrogen bonds, so it is not an organic compound. On the other hand, C2H4 is an organic compound because it is a hydrocarbon with two carbon atoms and four hydrogen atoms. This compound is also known as ethylene and is used in the production of plastics, rubber, and other chemicals.

In conclusion, the organic compound out of the given options is C2H4 (ethylene), while the rest are inorganic compounds.

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Answer:

Polymerization, any process in which relatively small molecules, called monomers, combine chemically to produce a very large chain-like or network molecule, called a polymer. The monomer molecules may be all alike, or they may represent two, three, or more different compounds.

Explanation:

:^)

Answer:

Closed-toe shoes, long pants, a lab coat, safety glasses with side shields or splash goggles, and gloves.

Explanation:

Answer:

H2S

Explanation:

When hydrogen react with sulphur, the following occurrs:

Hydrogen has a valency of +1.

Sulphur has a valency of –2.

During bonding, there will be exchange of ion as shown below:

H¹ + S²¯ —> H2S

The compound, H2S produced is called hydrogen sulfide.

Answer:

They must be dissolving.

Explanation:

Acid molecules must cling to remaining food molecules and slowly dissolve them.

Explanation:

A is cortect answer dsfa

Answer:

Augite or other dark-colored Pyroxene minerals

Explanation:

Basalt is given a dark color because it has a high amount of Augite and other dark-colored Pyroxene minerals.

The binding energy of silver-109 (Ag-109) in kJ/mol nucleons is not a well-defined concept, as binding energy is typically calculated for atomic nuclei rather than individual isotopes.

The binding energy of an atomic nucleus is the energy required to completely separate all of its constituent protons and neutrons into individual particles. It is usually expressed in units of energy per nucleon, which is the energy required to separate one proton or neutron from the nucleus.

The average binding energy per nucleon for an atomic nucleus is typically highest for medium-mass nuclei, such as those found in the region of the so-called "valley of stability" on the nuclear chart.

The binding energy per nucleon for silver-109 is not likely to be particularly high, as silver is a relatively heavy element and the binding energy per nucleon tends to decrease with increasing atomic number (Z).

Without more information about the specific calculation being used to determine the binding energy of Ag-109, it is not possible to accurately provide a value for the binding energy in kJ/mol nucleons.

The required masses (g/mol) are also not specified in the question, so it is not clear what context these values might be used in.

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Water is classified as a mixture because it is a combination of two or more substances that are physically combined but not chemically bonded. Mixtures can be separated into their original components by physical means, such as filtration, distillation, or centrifugation.

Water is a mixture of hydrogen and oxygen. The hydrogen and oxygen atoms in water are not chemically bonded together, but are held together by hydrogen bonds, which are relatively weak compared to chemical bonds. Therefore, water can be separated into its original components (hydrogen and oxygen) by electrolysis, a process that uses an electrical current to break the water molecules into hydrogen and oxygen.

Water is also known as a homogeneous mixture, which means that the composition is uniform throughout the mixture and that the components are not visible to the nakd eye.

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The electron domain and molecular geometries at the nitrogen and carbon atoms of urea can be predicted by applying the VSEPR theory.

In urea, the nitrogen atom has two bonded electron domains (one from the double bond with carbon and one from the lone pair of electrons) and the carbon atom has three bonded electron domains (one from the double bond with nitrogen and two from the two single bonds with oxygen).

Based on the VSEPR theory, the electron domains around the nitrogen atom will be arranged in a tetrahedral shape. However, since one of the domains is a lone pair, the molecular geometry around the nitrogen atom will be bent or angular.

On the other hand, the electron domains around the carbon atom will be arranged in a trigonal planar shape. Therefore, the molecular geometry around the carbon atom will also be trigonal planar.

To summarize, the electron domain geometry around nitrogen in urea is tetrahedral and the molecular geometry is bent or angular. The electron domain geometry around carbon is trigonal planar and the molecular geometry is also trigonal planar.

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Answer:

The correct option is;

c. Bromine, zinc, calcium, radium

Explanation:

The atomic radii of the elements as arranged in the periodic table decreases across the period and increases down the groups

The location of each of the elements are;

Zinc: Period 4, Group 12

Calcium: Period 4, Group 2

Radium: Period 7, Group 2

Bromine: Period 4, Group 17

Therefore, the element with the largest atomic radius = Radium

The element with the smallest atomic radius = Bromine

Calcium comes before zinc on period 4, therefore, the atomic radius of calcium is larger than that of zinc

The rank of the elements from smallest to largest atomic radius is therefore;

Bromine, zinc, calcium, radium.

False. Bottled water sold within the same state in which it was retrieved is not exempt from FDA inspection.

The U.S. Food and Drug Administration (FDA) regulates bottled water as a food product, and its standards and requirements apply regardless of the distribution within a single state. The FDA has established the Current Good Manufacturing Practices (cGMP) specifically for bottled water manufacturers to ensure the safety and quality of the product. These regulations cover various aspects of production, including source water protection, processing, labeling, and quality control.

The FDA conducts inspections and enforces compliance with these regulations to verify that bottled water companies meet the necessary standards. Inspections can be scheduled or unannounced, and they help ensure that the bottled water industry adheres to appropriate manufacturing practices and safeguards public health.

By subjecting bottled water to FDA inspections, regardless of the state of sale, the regulatory agency aims to maintain the safety and quality of the product and provide consumers with confidence in the bottled water they purchase.

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False

The statement that bottled water sold within the same state in which it was retrieved is exempt from FDA inspection is false.

What is FDA inspection?

The FDA (Food and Drug Administration) inspection ensures that the organization complies with the federal regulations, laws, and policies. They regulate food, drugs, medical equipment, cosmetics, and other products to ensure the safety of people.

The inspection includes reviewing documents, facilities, procedures, quality control, and testing to confirm that the company complies with all the guidelines and standards set by the government.

The inspection also involves physical inspections of products, food, and facilities. The primary aim of FDA inspection is to protect public health from harm.

Therefore, it is mandatory for all food and beverage products to comply with FDA standards. So, bottled water sold within the same state in which it was retrieved is not exempt from FDA inspection.

Hence, the given statement is false.

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The ordering of the fields of study of biological science from the  outermost level to the core is as follows:

Science is the body of knowledge which aims to understand and explain the natural world through observations and experiments.

The four branches of science are:

Comparing biological science to an onion with many layers, the ordering  outermost level to the core is as follows:

In conclusion, the levels of organization of science follows a systematic approach.

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\(\tt \large{\boxed{\bold{Nt=No.(\frac{1}{2}) ^{\frac{T}{t1/2} } }}\)

Nt/No = 1/8

T = duration of decay

t 1/2 = half-life

\(\tt \dfrac{1}{8}=\dfrac{1}{2}^\dfrac{T}{5}}\\\\(\dfrac{1}{2})^3=\dfrac{1}{2}^\dfrac{T}{5}}\\\\3=\dfrac{T}{5}\rightarrow T=15~years\)

The liquidus line separates the following combinations of phase fields: Liquid and Liquid + alpha. The correct option is b.

What is a phase field? A phase field is a technique for representing the microstructure of materials. It is used in materials science, mathematics, and computer science to simulate and study the behavior of materials in the solid and liquid phases. It is a multi-component field that contains information on the concentration of various components, their phase, and the local temperature, as well as other relevant variables.

The liquidus line is defined as the boundary between the liquid phase field and the field that includes both the liquid and the alpha phase. As a result, the liquidus line separates the following combinations of phase fields: Liquid and Liquid + alpha.

So, the correct option is b) Liquid and Liquid + alpha.

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The mass of the piece of cork is determined by its density, which can vary depending on the specific type of cork.

To calculate the mass of the piece of cork, we need to know its density. Density is defined as the mass per unit volume of a substance. However, the question only provides the volume of the cork, which is 35.5 milliliters (ml). Without the density, we cannot directly determine the mass.

To find the mass, we need to multiply the volume by the density of the cork. Density is typically expressed in grams per milliliter (g/ml) or grams per cubic centimeter (g/cm³). Once we have the density, we can use the formula:

Mass (g) = Volume (ml) x Density (g/ml)

Without information about the density of the cork, we cannot accurately calculate its mass. Therefore, we need additional data or specifications to proceed with the calculation.

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Answer:

just watch the video, what does it start with, write that down for each trial, then what does it end with, then starting mass - ending mass is the change mass

Answer:

1.1 x 10⁴ J

Explanation:

To calculate eth energy needed, you need to use the following equation:

Q = mcΔT

In this equation,

-----> Q = energy/heat (J)

-----> m = mass (g)

-----> c = specific heat (4.184 J/g°C)

-----> ΔT = change in temperature (°C)

You can plug the given values into the equation and solve.

Q = mcΔT

Q = (75.0 g)(4.184 J/g°C)(55.0 °C - 20.0 °C)

Q = (75.0 g)(4.184 J/g°C)(35.0)

Q = 11,000 J

Q = 1.1 x 10⁴ J

Sulfide ion (S+) with +1 charge has the same electron configuration as neutral phosphorus in its ground state. With the chemical formula S, Sulphur dioxide is an inorganic anion of Sulphur.

Following is the neutral phosphorus ground state electron configuration at atomic number 15.

phosphorus-15: 1s, 2s, 2p, 6, 3s, 2p

The electronic configuration of sulphur, which has atomic number 16, is once more as follows.

S-16: 1s, 2s, 2p, 6, 3s, 2p, 4.

From the aforementioned electronic configuration, we can infer that sulphur has one more electron in its valence shell than does phosphorus.

Sulphur must therefore release one electron from its valence shell, converting it from S -1e——>S+, to achieve the same electron configuration as phosphorus, which has 15 electrons.

Similar to this, the sulfuric acid ion, S2- - 3e—->S+

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It's important to note that these reactions are complex and can involve many steps and intermediates. It's possible that other products could also be formed, depending on the conditions and reactants used.  

A. The major organic product of vinylcyclohexane with Hg and \(H_2O\) is likely to be an alkyl alcohol. The reaction of vinylcyclohexane with  \(H_2O\) will give a 1,3-diene, which can then be further reacted with 2NaBH to give an alkyl alcohol. The major organic product for this reaction would be the alcohol formed from the 1,3-diene.

B. The major organic product of vinylcyclohexane with \(H_2O\) and oxygen is likely to be an alkene. The reaction of vinylcyclohexane with \(H_2O\) and \(H_2O\) will give a 1,3-diene, which can then be further reacted with THF to give an alkene. The major organic product for this reaction would be the alkene formed from the 1,3-diene.

C. The major organic product of vinylcyclohexane with BH in THF, followed by NaOH, \(H_2O\) is likely to be an alkene. The reaction of vinylcyclohexane with \(H_2O\) in THF will give a 1,3-diene, which can then be further reacted with NaOH, \(H_2O\) to give an alkene. The major organic product for this reaction would be the alkene formed from the 1,3-diene.

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Answer:

D. flammable​

Explanation:

Hope this helps :)

Answer:

D

Explanation:

I think but it is an better attempt than the other guy answer.

Scientists have categorized trees based on whether they keep or lose their leaves each year. Another logical way to categorize trees is based on the type of fruit that is produced.

In blooming plants, the structure that contains seeds after flowering is called a fruit. Flowering plants disperse their seeds through their fruits.

A fruit is a mature, ripened ovary, along with the contents of the ovary. The ovary is the ovule-bearing reproductive structure in the plant flower. The ovary serves to enclose and protect the ovules, from the youngest stages of flower development, until the ovules become fertilized and turn into seeds.

The Latin word fructus is where the term "fruit" originally came from. This was derived from the verb fruit, which means "to enjoy." Almost anything that could be cultivated from the ground was considered "fruit" when it first entered the English language.

Thus, option D is correct.

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