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adelina 88 [10]
3 years ago
13

The ratification of the covenant in Deuteronomy 27-30 includes ________. A. Covenant blessings and curses B. Messianic promises

C. Instructions for priests
Chemistry
1 answer:
mamaluj [8]3 years ago
4 0

Answer:Covenant blessings and curses

Explanation:

The scripture quoted in Deuteronomy 27-30 was Moses's ratification of the covenant between God and the people of Israel. He itemized the terms of the covenant and the blessings that follow obedience to the Lord and the curses that follow disobedience to the Lord. It is a statement of blessings and curses.

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Briefly describe bohr's model postulates and its limitations.​
ch4aika [34]

<u>Answer:</u>

<u>Bohr's Model postulates-</u>

I postulate - The electrons in an atom orbit around the nucleus in definite circular paths called orbits or shells.

II Postulate - Each shell or orbit represents a specific amount of energy.

III Postulate - By emitting or absorbing energy, an electron may shift from one stationary energy orbit to another.

<u>Three main Limitations -</u>

1- It adjusts to the hydrogen atom's spectrum but not to the spectra of other atoms.

2 - In the definition of the electron as a tiny particle that spins around the atomic nucleus, the wave properties of the electron are not described.

3- Bohr is unable to understand why classical electromagnetism is inapplicable to his model. That is why, when electrons are in a stationary orbit, they do not emit electromagnetic radiation.

Explanation:

<u>About Bohr's postulates-</u>

1 - The electron spins in circling circles around the nucleus, emitting no energy. The orbital angular momentum is constant in these orbits.

Only certain radii of orbits, corresponding to certain given energy levels, are required for electrons in an atom.

2- Not every orbit is possible. However, whenever an electron is in a legal orbit, it is in a state of unique and constant energy and does not emit energy (stationary energy orbit).

<u>For example -</u> The energies allowed for electrons in the hydrogen atom are given by the following equation: The Rydberg constant for the hydrogen atom is -2.8\times10^-^1^8 in this equation, and n = quantum number will range from 1 to ∞. For each of the values of n, the electron energies of a hydrogen atom produced by the above equation are negative. As n rises, the energy becomes less negative and thus rises.

3- By emitting or absorbing energy, an electron may shift from one stationary energy orbit to another.

The energy difference between the two states would be equal to the energy released or consumed. This energy E is in the form of a photon, and it can be measured using the following formula:

    E=hv

E is the energy (absorbed or emitted) in this equation, and h is the Planck constant (its value is 6.63\times10^-^3^4 Js) and v denotes the frequency of light, which is calculated in 1/ s.

8 0
2 years ago
How many electrons does oxygen have in its outer shell?
Ne4ueva [31]
6 . 2 in its inner shell & the remaining 6 in its outer shell.
7 0
3 years ago
U-238 has _____ protons and 146 neutrons
qaws [65]
U-238 
The number besides the U means its total molar mass. The molar mass of this element is 238
Molar mass= protons + neutrons
This means that 238= 146 + protons
Do 238 - 146
Answer is 92
6 0
3 years ago
3. If the percent by volume is 2.0% and the volume of solution is 250 mL, what is the volume of solute in solution? (1 point) 0.
igor_vitrenko [27]
Volume percent = Volume of solute
                              ----------------------------------
                                Volume of the solution
  
                  2                    Volume of the solute
               -------   =           ------------------------------
                100                               250
                     
         Volume of the solute = 2 x 250
                                                ------------
                                                  100         

                                             =   5 mL.

Hope this helps!




                            




4 0
3 years ago
What are three ways lakes can form?
quester [9]
Just choose 3

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2) Lakes can form in the craters formed by volcanoes (e.g. Crater Lake, Oragon)

3) Lakes can form when a river is damed by a natural rock fall or man (e.g. Lake Mede)

4) Lakes can form where glaciers have scooped out the rock from the floor of a valley (e.g. Lake Geneva)

5) Lakes can form where block faulting lowers the land (e.g. lake Baikal)

6) lakes can form in natural depressions in the land (e.g. Lake Victoria)
4 0
3 years ago
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