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3 years ago

What kinds of features would you expect to see at the edges of two plates, like these that are moving apart at their boundary?

1 answer:

5 0

The movement of the plates creates three types of tectonic boundaries: convergent, where plates move into one another; divergent, where plates move apart; and transform, where plates move sideways in relation to each other. Hope this helps! :D

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Choose the correct answer. The difference between the mass number of an isotope and its atomic number is (a) directly related to

kicyunya [14]

Answer : The correct answer is, (c) the number of neutrons

Explanation :

Isotope : It is defined as the element that have the same number of protons but have the different number of neutrons of each of the atom.

Atomic number is defined as the number of protons or number of electrons.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and number of neutrons.

Number of neutrons = Mass number - Atomic number

For example : For Carbon - 13 isotope.

Mass number = 13

Atomic number = 6

Number of neutrons = Mass number - Atomic number

Number of neutrons = 13 - 6 = 7

Hence, the difference between the mass number of an isotope and its atomic number is the number of neutrons.

6 0

3 years ago

What is the name given to the tiny clump of positive material at an atom’s center

Mariana [72]

The answer will be the Bohr model

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3 years ago

For the readion 2Na + Ch> 2NaCl, how many grams of Ch are required to read completely with 450 g Na

just olya [345]

I think it might be 3.54g

3 0

3 years ago

What are three subatomic particles

Alinara [238K]

Protons, neutrons, and electrons

6 0

3 years ago

Read 2 more answers

Given only the following data, what can be said about the following reaction?3H2(g) + N2(g)---> 2NH3(g) ΔH=-92kJA.) The entha

emmainna [20.7K]

Answer:

D.) Nitrogen and Hydrogen are very stable bonds compared to the bonds of ammonia.

Explanation:

For the reaction:

3H₂(g) + N₂(g) → 2NH₃(g)

The enthalpy change is ΔH = -92kJ

This enthalpy change is defined as the enthalpy of products - the enthalpy of reactants. As the enthalpy is <0, The enthalpy of products is lower than the enthalpy of reactants.

Also, it is possible to obtain the enthalpy change from the bond energies of products - bond energies of reactants, thus, The total bond energies of products are lower than the total bond energies of reactants.

The rate of the reaction couldn't be determined using ΔH.

As the bond energy of ammonia is lower than bonds of nitrogen and hydrogen, D. Nitrogen and Hydrogen are very stable bonds compared to the bonds of ammonia.

I hope it helps!

3 0

3 years ago