The attractive forces that are important in the secondary structure of a protein are a. hydrogen bonds b. hydrophobic interactions c. salt bridges d. disulfide bonds e. peptide bonds

The symbοls fοr these elements are:

A chemical element is a chemical substance that cannοt be brοken dοwn intο οther substances. The basic particle that cοnstitutes a chemical element is the atοm, and each chemical element is distinguished by the number οf prοtοns in the nuclei οf its atοms, knοwn as its atοmic number.

Fοr example, οxygen has an atοmic number οf 8, meaning that each οxygen atοm has 8 prοtοns in its nucleus. This is in cοntrast tο chemical cοmpοunds and mixtures, which cοntain atοms with mοre than οne atοmic number.

The chemical elements that meet the given criteria (atοmic number less than 15 and atοmic mass greater than 23.9u) are:

Therefοre, the symbοls fοr these elements are:

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Answer:5600 years

Explanation:

the amount of time it takes for the quantity to lose 50% (Half life) of its value. The half-life of carbon-14 is about 5600 years. Thus, after 5600 years, a piece of cotton cloth will contain half the carbon-14 that was in the original cotton plant.

Answer:

Applied science is generally engineering, which develops technology, although there might be dialogue between basic science and applied science (research and development). Medical sciences such as medical microbiology are examples of applied sciences.

Explanation:

Answer:

D. 32.

Explanation:

Remember the formula of atomic mass:

If you go to see the periodic table, you can note that the atomic mass of cobalt is 58.9 amu rounded to 59 amu. Let's solve for '# neutrons' and replace the atomic mass (59) and the atomic number (27) (remember that the number of protons is the same that the atomic number), like this:

The answer would be that the number of neutrons to make a cobalt atom most stable is D. 32.

Answer:

Bohr's greatest contribution to modern physics was the atomic model. The Bohr model shows the atom as a small, positively charged nucleus surrounded by orbiting electrons.

Explanation:

Answer: He proposed a theory for the hydrogen atom based on quantum theory

Explanation:

Answer:

b,d,f

Explanation:your welcome give brainilest

Answer:

b,d,f

Explanation:

Answer:

= 10000000000000 Nanoliters

Explanation:

1.0 x (10^4) L =

10 000 L

10 000L converted into Nanoliters

= 10000000000000 Nanoliters

Hope this helps

(a) When a gas mixture is compressed without the formation of a liquid, the following changes occur: Density of the mixture, Temperature of the mixture, Average molecular weight, etc,.

(i) Density of the mixture: The density of the gas mixture increases as it is compressed. When gases are compressed, the same amount of gas is forced into a smaller volume, resulting in higher gas particles' concentration per unit volume. This increased concentration leads to a higher density of the gas mixture.

(ii) Temperature of the mixture: The temperature of the gas mixture generally increases during compression. When a gas is compressed, work is done on the gas, causing an increase in internal energy. This increase in internal energy corresponds to an increase in the average kinetic energy of the gas molecules, resulting in an increase in temperature. However, it's important to note that for an ideal gas undergoing adiabatic compression (no heat exchange with the surroundings), the temperature increase can be more significant compared to a non-ideal gas undergoing compression with heat transfer.

(iii) Average molecular weight: The average molecular weight of the gas mixture remains constant during compression. The molecular weight of each gas component in the mixture does not change as a result of compression. Therefore, the average molecular weight, which is calculated by considering the relative amounts of each gas component, remains constant.

It's worth mentioning that changes in pressure, temperature, and volume during compression can affect the individual gas component concentrations within the mixture if the gas components have different compressibility or solubility characteristics. However, the average molecular weight of the gas mixture as a whole remains unchanged.

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there is not have enough magnesium to react with all the titanium tetrachloride. If this point is not clear from the mole ratio, calculate the number of moles of one reactant that is required for complete reaction of the other reactant. For example, there are 8.23 mol of Mg, so (8.23 ÷ 2) = 4.12 mol of TiCl4 are required for complete reaction. Because there are 5.272 mol of TiCl4, titanium tetrachloride is present in excess. Conversely, 5.272 mol of TiCl4 requires 2 × 5.272 = 10.54 mol of Mg, but there are only 8.23 mol. Therefore, magnesium is the limiting reactant.

Answer:

Check to make sure the equation is balanced

Explanation:

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Answer:

b

Explanation:

Answer: A

Explanation:

Answer:

We assume you are converting between moles Gold and gram. You can view more details on each measurement unit: molecular weight of Gold orgrams The molecular formula for Gold is Au. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Gold, or 196.96655grams.

The maximum volume of carbon dioxide that can be formed at RTP would be 0.48 L.

Sodium carbonate reacts with hydrochloric acid according to the following balanced equation:

\(Na_2CO_3 + 2HCl -- > 2NaCl + H_2O + CO_2\)

The mole ratio of the sodium carbonate that reacts to the carbon dioxide that is produced is 1:1. Thus 0.020 mol of sodium carbonate will be equivalent to 0.020 mol of carbon dioxide.

At room temperature and pressure (RTP), 1 mole of gas is equivalent to 24 L of gas.

Thus, 0.020 mol carbon dioxide would be equivalent to:

0.020 x 24 = 0.48 L

In other words, the maximum volume of carbon dioxide that can be produced from the reaction at RTP is 0.48 L.

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Answer:

1 Once proteins, fats and carbohydrates are digested, absorption takes place in the small intestine.

2 if we eat food we get energy, but if there weren't chemical reaction in your body nothing happens.

Explanation:

1 Most of the digestion occurs in the first part of the small intestine while the absorption of broken down nutrients, water, vitamins, and minerals occurs in the rest of it.

The mole fraction of hydrochloric acid (HCl) in the solution is approximately 0.460.

Molality (m) is defined as the number of moles of solute per kilogram of solvent. In this case, the molality of HCl is given as 8.56 mol/kg. Mole fraction (X) is defined as the ratio of the moles of a component to the total moles of all components in the solution.

To calculate the mole fraction of HCl, we need to know the total number of moles in the solution. However, the information provided only gives the molality of HCl, which provides the moles of HCl per kilogram of solvent, but not the total moles of the solution. Without the total moles of the solution, it is not possible to directly calculate the mole fraction of HCl. Therefore, based on the given information, it is not possible to determine the mole fraction of HCl in the solution accurately.

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Answer:

Yes

Explanation:

We have been created by him therefore we would not have been created if there was no God.

Answer:

1.  electrons

2. From "Y" to "X"

Explanation:

1. Electrons move between the rod since the electrons are the only charge carriers which are free to move.

2. The particles move from from "Y" to "X"  since the electrons are the only charge carriers which are free to move. The positive charge on rod x is due to a deficit of electrons while the negative charge on rod Y is due to the excess of electrons. When the rods come together, the electrons move from "Y" to "X" since the electrons are the only charge carriers which are free to move.

Answer:

5.4g

Explanation:

Explanation:

In gases the particles move rapidly in all directions, frequently colliding with each other and the side of the container. With an increase in temperature, the particles gain kinetic energy and move faster.

Answer:

High spec heat cap

Explanation:

Specific heat =   Q/(m *Tchange)

re-arrange to

Tchange =  Heat/(m *spec heat)

   this shows that a high  spec heat (in the denominator) will require a lot of heat (in the numerator) to change the Temp much  

The balanced equation for the neutralization reaction acid and base react to form salt and water is

                     H₂SO₃ + 2 Li OH   ===============> Li₂ SO₃ + 2 H₂O

A neutralization response is while an acid and a base react to shape water and a salt and includes the combination of H+ ions and OH- ions to generate water.

Neutralization is a method while acids and bases react to shape salt and water. In a reaction to water, neutralization outcomes in extra hydrogen or hydroxide ions gift inside the answer. The pH of the neutralized answer relies upon on the energy of the acid or base worried in it.

The neutralization reaction is the one wherein an acid reacts with an equimolar quantity of base to offer salt and water. the example could be a response between any robust acid and a base. The sodium chloride fashioned is a result of neutralization reaction.

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The balanced equation for the given reaction is:
cro42-(aq) + n2o(g) + 4H+(aq) → cr3(aq) + no(g) + 2H2O(l)

To balance the given skeleton reaction and identify the oxidizing and reducing agents, we will follow these steps:

1. Write the skeleton equation:
  cro42-(aq) + n2o(g) → cr3(aq) + no(g)

2. Balance the atoms other than hydrogen and oxygen:
  cro42-(aq) + n2o(g) → cr3(aq) + no(g)

  The chromium (Cr) atoms are balanced with one on each side. The nitrogen (N) atoms are also balanced with one on each side.

3. Balance the oxygen atoms:
  cro42-(aq) + n2o(g) → cr3(aq) + no(g)

  The left side has four oxygen atoms from the cro42- ion, while the right side has two oxygen atoms from the no molecule. To balance the oxygen atoms, we can add two water (H2O) molecules to the right side:

  cro42-(aq) + n2o(g) → cr3(aq) + no(g) + 2H2O(l)

4. Balance the hydrogen atoms:
  cro42-(aq) + n2o(g) → cr3(aq) + no(g) + 2H2O(l)

  The left side has no hydrogen atoms, while the right side has four hydrogen atoms from the water molecules. To balance the hydrogen atoms, we can add four hydrogen ions (H+) to the left side:

  cro42-(aq) + n2o(g) + 4H+(aq) → cr3(aq) + no(g) + 2H2O(l)

  Now, the equation is balanced.

5. Identify the oxidizing and reducing agents:
  The oxidizing agent is the species that gets reduced, while the reducing agent is the species that gets oxidized.

  In this reaction, the cro42- ion is reduced to cr3, gaining electrons. Therefore, the cro42- ion is the oxidizing agent. The n2o molecule is oxidized to no, losing electrons. Therefore, the n2o molecule is the reducing agent.

In summary, the balanced equation for the given reaction is:

cro42-(aq) + n2o(g) + 4H+(aq) → cr3(aq) + no(g) + 2H2O(l)

The oxidizing agent is cro42- and the reducing agent is n2o.

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The balanced chemical equations for the given reactions are:

16Ag + S₈  →  8Ag₂S

2 Al + 3 Br₂  →  2 AlBr₃

2 KClO₃  →  2KCl  + 3 O₂

CH₄  + O₂  →  CO₂   + 2 H₂O

2Al  + 3 O₂  → Al₂O₃

2 H₂O₂  → 2 H₂O   + 2 O₂

A balanced equation can be defined as an equation in which the number of atoms of every element involved in the reaction is equal on either side of the chemical equation.

The law of conservation of matter has to be obeyed by a balancing of a chemical equation.

By following the law of conservation of matter, the total mass of the elements of reactants will be equal to the total mass of products in a balanced chemical equation.

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The scientific statement is

D. There is life on some other planet in the universe aside from Earth.

A scientific statement is a statement that is based on empirical evidence, logical reasoning, and the scientific method. It is a claim or proposition that can be tested, observed, or measured, and is subject to scrutiny and verification.

Scientific statements are characterized by objectivity, reliance on evidence, and the potential for falsifiability or validation through experiments or further investigation. these statements aim to describe, explain, or predict phenomena in the natural world and are an essential part of scientific inquiry and the advancement of knowledge.

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complete question

Which sentence is a scientific statement?

A.

Food cooked in ceramic pots has a better aroma than food cooked in copper pots.

B.

A tall glass of water tastes better with a lemon wedge and ice cubes.

C.

Today, there are more viewers watching baseball than ice hockey on television.

D.

There is life on some other planet in the universe aside from Earth

The wavelength of a yellow light with a frequency of 5.2 x 10¹4 Hz is 6 × 10⁻⁷.

A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places (adjacent crests) in the consecutive cycles. This length is typically defined in wireless systems in meters (m), centimetres (cm), or millimetres (mm) (mm).

When electromagnetic radiation such as radio waves, light waves, or infrared (heat) waves travel through space, they leave behind distinctive patterns. Each wave has a distinct size and shape. Wavelength is the separation between peaks (high points).

By measuring the distance between any two identical locations on adjacent waves, the wavelength can always be found. When a longitudinal wave is present, the distance between one compression and the next is measured to determine the wavelength.

γ = λf

λ = γ / f

= 3 × 10 ⁸ / 5 × 10 ⁴

= 0.6 × 10⁻⁶

λ = 6 × 10 ⁻⁷

Thus, The wavelength of a yellow light with a frequency of 5.2 x 10¹4 Hz is 6 × 10⁻⁷.

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Answer:

5.8 x 10^-7

Put in this answer and got it correct

a. Stellar Nebula:

The fusion process in a stellar nebula begins with the fusion of hydrogen atoms to form helium.

As the fusion continues, helium accumulates and eventually enough pressure and heat are generated to trigger the fusion of helium into heavier elements, such as carbon, nitrogen, and oxygen.

b. Average/Medium Sized Star:

In an average-sized star, hydrogen fusion continues and generates more heat and pressure, allowing for the fusion of heavier elements such as helium, carbon, and oxygen.

As the fusion process continues, heavier elements such as neon, magnesium, and silicon are produced, leading to the formation of heavier elements such as iron.

c. Red Giant:

In a red giant, the outer layers of the star expand and cool, exposing the core. The core then contracts and heats up, causing the fusion of helium into heavier elements such as carbon, nitrogen, and oxygen.

The fusion process in a red giant generates a large amount of energy and creates elements such as neon, magnesium, and silicon, as well as heavier elements.

d. Red Supergiant:

In a red supergiant, the core continues to contract and heat up, causing the fusion of heavier elements such as carbon, nitrogen, and oxygen.

The fusion process in a red supergiant generates a tremendous amount of energy and leads to the formation of elements such as neon, magnesium, and silicon, as well as even heavier elements.

The energy from the sun's nuclear fusion affects the Earth in several ways:

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Answer:

I hope this helps you

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