Answer:ype your answer here: Conclusions What conclusions can you draw about the identity of the unknowns? Write an evidence-based claim. Type your answer here: Evaluate the
Explanation:
Answer:
D
Explanation:
Of the four given equations, we want to determine which will most likely have a positive Δ<em>S</em>.
A positive Δ<em>S</em> indicates an increase in entropy. Recall that entropy can be described as the "randomness" of a substance. Therefore, gases have the highest entropy, followed by liquids and solids.
Examining each answer choice:
- A is unlikely to have a positive Δ<em>S</em>, as gases are being converted into solids. As a result, entropy is lowered.
- B is likewise unlikely to have a positive Δ<em>S</em>. Multiple moles of gases are being converted into solution and another gas, leading to a decrease in "randomness."
- While all species involved in C are gases, we can see that two moles of gases react to form only one. Because the amount of gases decrease as the reaction proceeds, the amount of "randomness" likewise decreases, indicating a decrease in entropy.
- D is the best answer. One mole of gas reacts to form three moles of gas, thereby increasing "randomness" and hence increasea entropy.
Answer:
(1) Nuclear reactions entail a transition in the nucleus of an atom, which normally results in the formation of a new substance. Chemical reactions, on the other hand, only involve electron rearrangement and do not involve nuclei modifications. (4) Nuclear reactions are unaffected by the element's chemical form.
Explanation:
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Answer:
The neutrons have no charge
Explanation:
im not sure about the second part. good luck
The If a neutral atom has a mass of 15 amu and an atomic number of 7, ... 15 amu is the mass of the atom...so that means it has 8 neutrons.