what is the simplest alkane

An acyclic alkane with 12 carbon atoms will contain 26 hydrogen atoms, as determined by the formula for noncyclic alkanes, CnH2n+2. Alkanes consist of carbon and hydrogen atoms, and the number of carbon atoms in an alkane can vary widely.

The number of hydrogen atoms in an acyclic alkane with 12 carbon atoms can be found using the general formula for noncyclic alkanes, which is CnH2n+2. Here, 'n' represents the number of carbon atoms. Thus, if an acyclic alkane has 12 carbon atoms, you can substitute 12 into the formula to get: C12H2(12)+2 = C12H26. This means that an acyclic alkane with 12 carbon atoms will contain 26 hydrogen atoms.

All alkanes are composed of carbon and hydrogen atoms, and have similar bonds, structures, and formulas; noncyclic alkanes follow the formula of CnH2n+2. The number of carbon atoms present in an alkane has no limit. Greater numbers of atoms in the molecules lead to stronger intermolecular attractions (dispersion forces) and correspondingly different physical properties of the molecules.

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Final answer:

Sound waves are unique compared to ocean and light waves due to their compressions and rarefactions, as these are properties of longitudinal waves. Both ocean and sound waves have amplitude, wavelength, frequency, and speed, but sound waves compress and expand the medium they travel through.

Explanation:

Sound waves differ from ocean and light waves in specific ways, particularly in terms of compressions and rarefactions. Unlike ocean waves which are transverse waves characterized by crests (the highest points) and troughs (the lowest points), sound waves are longitudinal waves, which means their displacement is parallel to the direction of wave propagation. The compressions are regions where the medium through which the sound is traveling is compressed, while rarefactions are regions where the medium is less dense or stretched apart.

Common features like wavelength, amplitude, frequency, and speed are shared among sound, ocean, and light waves. Wavelength is the distance between two contiguous compressions or rarefactions in a sound wave. Amplitude is the maximum displacement of points on a wave, which corresponds to the volume in sound waves. Frequency is the number of waves passing a point per unit time, and speed is how fast the wave travels through a medium.

To find the number of neutrons in Roentgenium-272 (Rg-272), subtract its atomic number (111) from its mass number (272), resulting in 161 neutrons.

The student is asking to determine the number of neutrons in an atom of Roentgenium-272 (Rg-272). To calculate the number of neutrons in an atom of Rg-272, we use the mass number of the isotope and the atomic number of the element.

Roentgenium (Rg) has an atomic number of 111, which is the number of protons in the nucleus of the atom. The mass number of Rg-272 is the sum of protons and neutrons together. Since we know the atomic number of Rg is 111, the calculation to find the number of neutrons is:

Number of neutrons = Mass number - Atomic number
Number of neutrons = 272 - 111
Number of neutrons = 161

Therefore, an atom of Rg-272 has 161 neutrons.

Answer:

a mid ocean ridge or mid oceanic ridge is an underwater mountain range formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma.

A mid-ocean ridge forms at a divergent plate boundary, where tectonic plates move apart and create new seafloor through a process known as seafloor spreading.

A mid-ocean ridge typically forms at what's known as a divergent plate boundary. This is a location where two tectonic plates are moving away from each other, leading to the creation of new seafloor. As the plates diverge, magma from the Earth's mantle rises to fill the gap, and cools to form new crust. This process, known as seafloor spreading, results in the formation of mid-ocean ridges - undersea mountain ranges that are, collectively, the longest mountain range on our planet.

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There are various kind of elements that are present in periodic table. Some elements are harmful, some are radioactive, some are noble gases. Therefore, the blanks can be filled as below.

Periodic table is a table in which we find elements with properties like metals, non metals, metalloids and radioactive element arranges in increasing atomic number.

Periodic table help a scientist to know what are the different types of elements are present in periodic table so that they can discover the new elements that are not being discovered yet.

A. The atomic mass of an element includes atomic number plus the number of neutrons.

B. The atomic number represents the number of protons and electrons in an element.

C. Elements found in the same column have similar chemical properties.

D. An element with an atomic number of 11 and an atomic mass of 23 will have 12 neutrons total.

Therefore, the blanks can be filled as above.

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Final answer:

Radio waves have lower frequency and longer wavelengths than microwaves, which means they also have lower radiant energy. Thus, the correct statement comparing these two types of electromagnetic waves is that radio waves have lower radiant energy than microwaves. So the correct option is C.

Explanation:

The question asks to compare radio waves and microwaves in terms of their characteristics within the electromagnetic spectrum. Radio waves have longer wavelengths and lower frequencies compared to microwaves. Among the options provided, the correct statement would be that radio waves have lower radiant energy than microwaves since energy in electromagnetic waves increases with frequency and decreases with wavelength. Both radio waves and microwaves are used in various communication technologies, so the statement that only radio waves are used in communication is incorrect.

Final answer:

When ΔH is negative and entropy effects are negligible, the reaction is likely spontaneous because it is exothermic and releases heat, contributing to a negative Gibbs free energy which predicts spontaneity.

Explanation:

If a reaction has a negative ΔH (delta H), and there are no significant entropy effects, meaning the change in entropy (δS) is not large enough to influence the reaction significantly, the reaction is likely to be spontaneous. This is because a negative ΔH indicates that the reaction is exothermic, which means it releases heat. In the absence of significant entropy effects, the exothermic nature of the reaction would drive it towards spontaneity as per Gibbs free energy (ΔG = ΔH - TΔS), which would be negative when ΔH is negative and ΔS is negligible or positive.

The most acidic solution is represented by a hydrogen ion concentration of 10^-1 M, which is higher than 1 x 10^-7 M, indicating higher acidity.

The one that describes the most acidic solution among the given hydrogen ion concentrations is 10^-1 M. The acidity of a solution is determined by the concentration of hydrogen ions ([H+]), also referred to as hydronium ions ([H3O+]). A higher concentration of these ions means the solution is more acidic. According to the provided reference material, a solution is acidic if [H3O+] > 1 × 10^-7 M, neutral if [H3O+] = 1 × 10^-7 M, and basic if [H3O+] < 1 × 10^-7 M. Therefore, a concentration of 10^-1 M is significantly greater than 1 × 10^-7 M, indicating a very acidic solution.

The most acidic solution among the given options is 10-1 M.

To determine acidity, we compare the [H+] values. A solution is considered acidic if its [H+] concentration is greater than 1 × 10-7 M. In this case, 10-1 M is much greater than 1 × 10-7 M, making it the most acidic solution.

Final answer:

Genetic engineering in medicine includes inserting genes into bacteria to produce needed medicines, using recombinant DNA technology. This innovation allows for the mass production of medical substances like insulin, hormones, and antibiotics. So the correct option is B.

Explanation:

Genetic engineering has a wide array of applications in various fields, including medicine and agriculture. One medical application of genetic engineering, as identified by option B, involves inserting genes into bacteria to produce medicine. This process is known as recombinant DNA technology, where genes are isolated, and then inserted into other organisms, like bacteria, which can then be grown in culture to produce useful substances like insulin, hormones, and antibiotics. Such methodologies have revolutionized the production of medicines, making previously scarce treatments widely available.

In the context of genetic engineering applications in agriculture, genomics can be used to improve crop yields, increase disease resistance, and generate new hybrid strains. However, the question specifically asked for a medical application, distinguishing it from agricultural uses.

The  new  volume  is 71.76  L

calculation

 The new  volume  is  calculated using  the Boyle's  law  formula

that  is  P1V1=P2V2  where,

P1=1.38 atm

V1= 13000  L

P2  =250 atm

V2= ?

make V2  the   subject of the formula   by diving both side by P2

V2= P1V1/ P2

v2=( 1.38  atm  x 13000 L)  / 250 atm = 71.76 L

Final answer:

To calculate the pH of a 0.150M solution of HNO3, use the formula pH = -log([H+]), which gives a pH of approximately 0.823 since HNO3 is a strong acid and fully dissociates.

Explanation:

To calculate the pH of a 100.0 mL of a 0.150M aqueous solution of HNO3, we need to understand that  is a strong acid and fully dissociates in water. This means that the concentration of hydrogen ions, [H+], in the solution will be equal to the concentration of the nitric acid, which is 0.150M. The pH is calculated using the formula pH = -log([H+]) where [H+] is the concentration of hydrogen ions.

Plugging the values into the formula, we get pH = -log(0.150). The pH calculation would result in a pH of approximately 0.823.

its an electrolyte.. :D

Zinc metal reacts with oxygen to form solid zinc(II) oxide, The balanced equation is 2Zn + O₂ → 2Zn₂⁺+ 2O₂⁻ .

With the atomic number 30 and the symbol Zn, zinc is a chemical element. When the oxidation is removed, zinc transforms into a shiny-greyish metal that is slightly brittle at normal temperature. It is the first element in the periodic table's group 12 of elements.

A chemical combines with oxygen to form its oxide during combustion, which generates heat and light. Metals produced when metal oxides react with oxygen. Zinc oxide is created by the combustion of zinc, as illustrated below: 2Zn+O2→2ZnO.

This reaction is a combination reaction, which is the type of chemical reaction it is. Balanced Approaches: We have zinc and oxygen gas in this reaction of combination, and they mix to make zinc oxide.

Thus, zinc metal reacts with oxygen to form solid zinc(II) oxide, The balanced equation is 2Zn + O₂ → 2Zn₂⁺+ 2O₂⁻ .

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Answer:

Glucose

Explanation:

i took flvs 8th grade

Answer:

Explanation:

Subatomic particles are the structures of matter that are smaller than the atom, and that are part of it and determine its properties. These particles can be of two types: compound and elementary, that is, divisible (composed of other subatomic particles) and indivisible respectively.

The atom is made up of three stable particles: electron, proton and neutron and these particles are in turn composed of others, still smaller. So, currently the existence of the following subatomic particles is known, in addition to the three previously mentioned:

Due to their low stability and size, these particles are very difficult to study and discover.

Final answer:

Work and energy are measured in joules, which is the SI unit representing the amount of work done by a force of one newton over one meter, with 1 joule being equivalent to 1 newton-meter (N·m).

Explanation:

Work and energy are both measured in the same unit, which is the joule (J). In the International System of Units (SI), a joule is defined as the amount of work done when a force of one newton is applied over a distance of one meter. Therefore, 1 joule is equal to 1 newton-meter (N·m), which is also the equivalent of 1 kilogram-meter squared per second squared (kg·m²/s²). For example, one joule is the amount of energy required to lift a small 100-gram apple approximately 1 meter against the force of gravity.

Energy can be defined as the capacity to do work. Since work is calculated as force times distance, the SI unit for energy and work reinforces the relationship between these concepts, making joules a common unit to express both. The work-energy theorem explains how work is transformed into kinetic energy and further reinforces the use of joules as a unit of measurement for these terms.

The Gaia Hypothesis is an example of negative feedback.

Answer "The correct option is "It has several billion stars"

Explanation :

Milky way is the name of the galaxy in which our solar system is present. The name is given because of its appearance. This galaxy has a spiral shape when seen from outer universe and looks like a disk when viewed from earth.

The milky way is one of the galaxies in the universe and contains several billion stars.

The option "It is a big planet""is not correct because we know that it contains billions of stars and plants and not just one big planet.

The options "It contains the universe" is not correct because it is one of the galaxies present in the universe.

The option "It has an irregular shape" because we know that it has a definite spiral shape.

Therefore the only option that is correct is "It has several billion stars"

Answer: C.

The gravity on the Moon is less than the gravity on Earth.

Explanation: plato :3

If a standard die is rolled twice, the probability of getting a perfect square is 1/9 and a number that is less than 5 is 1/16.

Probability is a branch of mathematics which tells about the chances of occurring in something.

There are three squares in a standard dice. 1, 2, 4. If there are two dices, then the probability of getting squares are 1/3 x 1/3 = 1/9.

There are four numbers less than 5, so

1/4 x 1/4 = 1/16.

Thus, the probabilities are 1/9 and 1/16.

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