adiation is spontaneously emitted from hydrogen-3 nuclei, but radiation is not spontaneously emitted from hydrogen-1 nuclei or hydrogen-2 nuclei. Which hydrogen nuclei are stable

Answers

Answer 1

Answer:

Radiation is spontaneously emitted from hydrogen-3 nuclei, but radiation is not spontaneously emitted from hydrogen-1 nuclei or hydrogen-2 nuclei. Which hydrogen nuclei are stable

The hydrogen nuclei that are stable are hydrogen-1 nuclei or hydrogen-2 nuclei because radiation is not spontaneously emitted from them. Only the hydrogen – 3 nuclei is spontaneously emitted by radiation.

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Predict the products in the following reaction: AgNO3(aq) + Na2CrO4(aq) →

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You expect Sodium Nitrate and Silver Chromate, just go ahead and make sure your complete reaction is balanced

Carbon-14 is the typical radioisotope used to date materials; however, it has a limitation to 40,000 years. A scientist who wants to date materials older than 40,000 years would most likely use ?

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A scientist who wants to date materials older than 40,000 years would most likely use Potassium – argon dating or K-AR dating. Potassium-40 is a radioactive isotope of potassium that decays into argon-40. The half life of potassium-40 is 1.3 billion years far longer than carbon-14.

Answer:The answer would be uranium-238 hope this helps

Explanation:

The dopamine molecule has an intermediate hydrophobicity. Edit the dopamine molecule so that it is more hydrophobic.

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You should edit the dopamine molecule by tampering with its polar groups. Polar groups affect chemical's physical properties including hydrophobicity.

The release of energy from a molecule by the removal of hydrogen is known as A) oxidation B) active transport C) dehydration synthesis D) reduction

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Answer:

The correct answer is option A) Oxidation

Final answer:

The release of energy through the removal of hydrogen from a molecule is referred to as oxidation. In this process, energy is often released which can be utilized by cells for different functions.

Explanation:

The release of energy from a molecule by the removal of hydrogen is known as A) Oxidation. In biochemical reactions, oxidation refers to the process in which electrons are removed from a molecule, usually by removing a hydrogen atom (which consists of one proton and one electron). This process often releases energy that can be used by cells for various functions. Thus, through oxidation, molecules such as carbohydrates or fats can be broken down to release energy used for cellular activities.

Learn more about Oxidation here:

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Which of the following is true about the neutrons of an atom?A. The neutrons of an atom are the only subatomic particles that are involved in the interaction between two atoms.

B. The neutrons do not affect the mass or stability of an atom's nucleus, but they are involved in most interactions between two atoms.

C. The neutrons do not affect how the atom interacts with other atoms, but they do have an effect on the mass and stability of the nucleus.

Answers

I think the correct answer is C. Neutrons do not affect how atoms bond due to their neutral charge which makes it so that they don't affect the movement of electrons at all (chemical reactions occur when electrons are transferred/shared). Neutrons due however have a mass similar to that of a proton which means they contribute to the mass of the atom. Neutrons also effect the stability of the nucleas as shown in atoms that have radioactive isotopes. I hope this helps. Let me know if anything is unclear.

For an experiment, you place 15 g of ice with a temperature of -10 C into a cup and labela. You also place 25 g of ice at the same temperature into another cup and label it
b. Which of the following statements is true?
A) The average kinetic energy of the ice in cup A is less than that in cup
b.
B)The average kinetic energy of the ice in cup A is greater than that cup in
b.
C)The average kinetic energy of the ice cup A is equal to that in cup
b.
D)The average kinetic energies of the ice in cup A and the ice in cup B are not comparable.

Answers

Average kinetic energy is given by the formula:

KE(average) = 3/2*k*T

where k = Boltzmann constant = 1.38*10⁻²³ J/K

T = temperature in Kelvin (K)

Thus, the average KE is dependent only on temperature and independent of mass.

Since the temp in Cup A and B remains the same, the average KE will also be the same.

Ans C)

The correct answer is c. Temperature is the average kinetic energy of a sample so if two samples have the same temperature they will also have the same average kinetic energy. I hope this helps. Let me know if anything is unclear.

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The bicycle is said to be the most energy-efficient means of transportation. Where does the energy that drives it come from?