what is a rapidly spinning neutron star that emits bursts of radio and optical energy?

Answer

A compound made of two ions.

Explanation

A binary compound is a compound formed from two different elements. There may or may not be more than one of each element.

For a binary ionic compound, a metal will always be the first element in the formula, while a nonmetal will always be the second.

Hence, a binary ionic compound is a compound made of two ions.

Answer:

way too many valence electrons

Explanation:

By putting a double bond on F, you give it 10 valence electrons which breaks the octet rule

Subscript D indicates that the measurement was made using light with a wavelength of 589.3 nm

A more detailed explanation of the answer.

The subscript D in the relative refractive index for decane as n'26 D = 1.4110 refers to the wavelength of the light being used in the measurement. In this case, the subscript D indicates that the measurement was made using light with a wavelength of 589.3 nm (the D-line of the sodium spectrum).

Which is a specific wavelength of light (approximately 589.3 nm) emitted by a sodium lamp. The refractive index is measured using this light source to ensure consistency in the measurements.

This means that the value of the refractive index obtained using light of a different wavelength would be different. Therefore, it is important to specify the wavelength used when reporting the refractive index.

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A mixed inhibitor that has a higher affinity for the enzyme compared to the substrate can affect the Michaelis-Menten constant (Km) in enzyme kinetics by increasing the value of Km.

Km is a measure of the substrate concentration required for half-maximal velocity and is a key parameter in describing enzyme catalysis. However, In the presence of a mixed inhibitor, the inhibitor molecule can bind to both the free enzyme and the enzyme-substrate complex with different affinities.

The binding of the inhibitor to the free enzyme reduces the number of active enzyme molecules available for catalysis while binding to the enzyme-substrate complex slows down the catalytic reaction. This leads to a reduction in the effective concentration of the enzyme-substrate complex, which in turn increases the apparent Km value.

In other words, the higher affinity of the mixed inhibitor for the enzyme reduces the efficiency of the enzyme-substrate complex formation, making it more difficult for the substrate to bind to the enzyme, hence increasing the value of Km. Therefore, a mixed inhibitor that has a higher affinity for the enzyme compared to the substrate can cause a decrease in the efficiency of enzyme catalysis, which is reflected in the increase in Km.

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Answer:

B

Explanation:

gamma rays have the shortest wave length

Infrared, visible light and gamma rays are lists of the waves in order of wavelength, from longest to shortest. Hence, option B is correct.

Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.

The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.

Hence, option B is correct.

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Answer:  True

Explanation: Transferring energy to or from a substance can change its state. Heating a substance in the solid state will cause it to melt, which changes it to the liquid state. Continued heating will cause the substance to evaporate or boil, which changes it to the gas state.

Some substances in the solid state can change straight to the gas state. This process is called sublimation.

A substance in the gas state condenses when it is cooled, which changes it to the liquid state. Continued cooling causes it to freeze, which changes it to the solid state.

Answer:

A. Nucleotide

Explanation:

Nucleotides are the monomers that make up nucleic acids, such as DNA and RNA.

1.98 moles of Magnesium oxide were formed.

The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.

Now write the balanced chemical equation

2Mg + O₂ → 2MgO

(2 × 24)          2 × (24 + 16)

48 g of Mg gives 80 g of MgO

To find the number of moles use the expression

Number of moles = \(\frac{\text{Given mass}}{\text{Molar mass}}\)

                              = \(\frac{80}{40.3}\)

                              = 1.98 mole

Thus from the above conclusion we can say that 1.98 moles of Magnesium oxide were formed.

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Answer: probably c i'm not too good with chemistry however i can tell u how  got it

Explanation: 27/13Al+1/0

or

simplify 27lA>13  which = 1>0

in my terms 1/0n the answer is c

btw no worries i tend to add a lot of people on brainly and when i send them a request i try to help them the best i can regardless of the trouble it takes, i'm not some crazy weirdo with a crazy crush, that's what all my friends thought, but nah not true i just like to help anyways.. uhm lemme stop typing

The value of the Q-system is Zero.

The Q-System is a rock mass classification system related to the stability of underground openings. Q-System was originally developed at NGI and is widely used in Norway and internationally. service. The Q value of undisturbed mountains can fluctuate. The Q-System is a rock mass classification system related to the stability of underground openings.

Based on the estimation of six rock parameters the Q value of rocks can be calculated. This value represents the quality of the rock. Rock quality designation RQD is a rough measure of the degree of fracturing or fracturing of rock masses measured as the percentage of drill cores that are 10 cm or longer in length. High-quality rocks have an RQD greater than 75% and low-quality rocks less than 50%. There are several definitions of lithology designation RQD.

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The B: oxygen in O2 is oxidized in the given redox reaction. In a redox reaction, oxidation is the loss of electrons, while reduction is the gain of electrons. In the given reaction, oxygen gains electrons from sulfur, which means oxygen undergoes reduction. At the same time, sulfur loses electrons to oxygen, which means sulfur undergoes oxidation. Therefore, the element that is oxidized in this reaction is sulfur.

To describe the answer more accurately, it should be noted that the question is asking about which element is oxidized, not which compound or molecule. The reactants in the reaction are 2 molecules of H2S and 1 molecule of O2, and the products are 2 molecules of H2O and 1 molecule of S. It is the oxygen in O2 that is oxidized, as it gains electrons during the reaction.

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A test used in suspected arson investigations that separates the parts of accelerant residue into a specific pattern is called flash point. Therefore, the correct option is option D.

A fire investigator employs the procedure of fire accelerant detection to ascertain whether fire accelerants were employed at a fire site. Fire investigators as well as chemists must perform both fieldwork and laboratory analysis as part of this procedure.

It is the responsibility of the chemist to identify these ILRs, and it is the responsibility of the investigator to ascertain if they were employed as flames accelerants or were merely present at the site normally. A test used in suspected arson investigations that separates the parts of accelerant residue into a specific pattern is called flash point.

Therefore, the correct option is option D.

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The property of matter that is conserved in chemical reactions and shown by balanced equations is known as the Law of Conservation of Mass. According to this law, mass can neither be created nor destroyed in a chemical reaction; it can only be transformed from one form to another.For instance, when two substances are combined, they react and form a new substance.

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Answer:

In chemistry the substance is usually measured using molecular mass and molar mass. They are very important concepts in chemistry. Expression of molar mass is grams per mole.

...

Molar mass:

Difference between Molar mass and Molecular mass

Measurement given to compounds, atoms or molecules Determined only in molecules

Explanation:

hope the answer was helpful

Answer:

igneous to metamorphic

sedimentary to metamorphic

Answer:

18,937.8 J

Explanation:

A total of 334 J of energy are required to melt 1 g of ice at 0°C, which is called the latent heat of melting. At 0°C, liquid water has 334 J g−1 more energy than ice at the same temperature. This energy is released when the liquid water subsequently freezes, and it is called the latent heat of fusion.

Giant molecules are also referred to as macromolecules and polymers when numerous molecules are combined. These atoms are arranged in a three-dimensional structure and are joined by covalent bonds.

A giant molecule, also known as a macromolecule, is a usually large molecule crucial to biophysical processes, such as a protein or nucleic acid. It is made up of many atoms that are covalently bound. Large non-polymeric molecules including lipids and macrocycles, as well as biopolymers, are the most prevalent macromolecules in biochemistry. In addition to synthetic fibers, giant molecules can also be found in research materials like carbon nanotubes.

Different experts use different terminology for giant molecules. For instance, in biology, giant molecules refer to the four immense molecules that make up living things, while in chemistry, it refers to aggregates of two or more molecules that are held together by intermolecular forces rather than covalent bonds yet that is difficult to dissolve apart. The term giant molecule is frequently referred to as high polymer in British English.

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Answer:

The following are the four unusual characteristics of water due to hydrogen bonding:  

1. Water exhibits high specific heat as the presence of hydrogen bonds enhances the concentration of energy needed for the molecules to accelerate the speed, thus, elevating the specific heat.  

2. Water has both high melting and high boiling points as hydrogen bonds enhance the energy, which is needed at the time of phase change, thus, increasing both the melting and the boiling points.  

3. The hydrogen bonds present in the water gives rise to robust intermolecular attractions, therefore, enhancing the surface tension.  

4. The hydrogen bonds present in the water makes the water to exhibit high heat of vaporization, that is, of about 41 KJ/mol.  

Answer:

High boiling and melting points: Hydrogen bonds increase the amount of energy required for phase changes to occur, thereby raising the boiling and melting points.

High specific heat: Hydrogen bonds increase the amount of energy required for molecules to increase in speed, thereby raising the specific heat.

Lower density as a solid than as a liquid: Hydrogen bonds increase the volume of the solid by holding molecules apart, thereby decreasing the density.

High surface tension: Hydrogen bonds produce strong intermolecular  attractions, which increase surface tension.

Answer:

that isn't a full equation but I will assume this is = to 0

that makes x 30.95

Explanation:

When it comes to separating atoms in a compound, chromatography, distillation, and filtration are not suitable methods.

This is because these methods are designed to separate mixtures based on their physical properties, such as boiling point or particle size, rather than breaking down compounds into their individual atoms. To separate atoms within a compound, more complex processes like chemical reactions or nuclear reactions are required.

These processes involve breaking the chemical bonds between atoms, resulting in the formation of new compounds or elements. So, in short, chromatography, distillation, and filtration cannot be used to separate atoms in a compound. Let me know if you have any more questions!

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The new volume of nitrogen gas is **47.2 mL** when cooled to **-10 degrees C** and placed under a pressure of 1.5 atm.

To calculate the new volume, we will use the Combined Gas Law formula, which is (P1 * V1 * T2) / (P2 * T2). Given the initial volume (V1) is 25 mL, initial pressure (P1) is 2.0 atm, initial temperature (T1) is 45 degrees C, final pressure (P2) is 1.5 atm, and final temperature (T2) is -10 degrees C, we will first convert the temperatures to Kelvin by adding 273.15. This gives us T1 = 318.15 K and T2 = 263.15 K. Plugging the values into the formula, we get:

(2.0 * 25 * 263.15) / (1.5 * 318.15) = 47.2 mL

Hence, the new volume of nitrogen gas at -10 degrees C and 1.5 atm pressure is 47.2 mL.

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Answer:

Don't worry school's will re-open in August 2021. ._.

Explanation:

i think everyone does. so i'll help you

A trial refers to a plan to test an idea. A trial is a test, a plan to test an idea, or one of a series of tests that are designed to determine whether a hypothesis or a theory can be verified or disapproved in the field of science.

Trials are conducted to assess the effectiveness of new medications or to identify the underlying cause of a disease, among other things. A hypothesis is developed in which the scientist predicts the outcome of the trial before it is conducted. The null hypothesis, which assumes that there is no significant difference between the control and test groups, is another hypothesis. After the trial has been conducted, the outcomes are evaluated, and the hypothesis is either confirmed or refuted based on the findings. Trials are critical in determining the effectiveness of new treatments and interventions for human illnesses and ailments. They are the primary technique used to determine if new medicines or therapies are effective, and they can assist in establishing the scientific basis for a specific medicine or therapy.

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Answer:

So yes, two objects of the same substance, but with a difference size and/or shape can have the same density, it all comes down to the weight, the volume and the temperature to determine your density, that is assuming your object isn't hollow of course.

Explanation:

Answer:

it is possible

Explanation:

The density of a substance is the relationship between the mass of the substance and how much space it takes up (volume). Density equals the mass of the substance divided by its volume; D = m/v. Objects with the same volume but different mass have different densities.

Answer:

the hawk

Explanation:

in order it would be: producer, primary, secondary, tertiary

Answer:

the hawk is the tertiary consumer

Answer:

104.5j

Explanation: