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Fofino [41]
3 years ago
15

What parts of an atom can change during a nuclear reaction that cannot change during a chemical reaction? The number of neutrons

and electrons The number fo protons and neutrons The number of electrons only The number of protons and electrons​
Chemistry
2 answers:
Tcecarenko [31]3 years ago
8 0

Answer:

The number of protons and neutrons.

Explanation:

Neutrons and Protons can't be removed from nucleus from chemical reactions because they are held together super strong and tight. However, nuclear reactions are strong enough to separate them.

hope this helps :)

liubo4ka [24]3 years ago
5 0

Answer:

The number of protons and neutrons

Explanation:

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A rod shaped organism with no nucleus commonly found in Garbage will most likely belong to which kingdom
Dovator [93]

Answer:

Monera

Explanation:

This organism is only bacteria (bacilli bacteria). They are simple unicellular organism; they have no nucleus. They barely have organelles. These organism in the garbage are heterotrophic /saprophytic and cause the composition of the organic molecules (such as the discarded foods).  

8 0
3 years ago
I still see your shadows why cant I get over you. You were my first love and my last love. All this love is lost because I cant
Arlecino [84]

The reason you are holding on to that might be because you have hope that this person who left you might come back. If they left you they aren't worth hoping for them to come back. This is a question that probably should be asked elsewhere but hope I can help.

6 0
3 years ago
Thermal energy would naturally flow between objects at which temperatures?
marissa [1.9K]

Answer:

i think the answer is letter C. From 35°c to 45°c

Explanation:

sorry if it is wrong

4 0
3 years ago
Why homoannular diene in uv spectrometry have higher wavlenth than hetroannular diene?
Leno4ka [110]

Answer:

Homoanular dienes have a greater base value than heteroanular dienes

Explanation:

Woodward in 1945 gave a set of rules relating the wavelength of maximum absorption to the structure of a compound. These rules were modified by Fieser in 1959. These sets of rules describe the absorption of organic molecules in the UV region of the electromagnetic spectrum.

Each system of diene or triene has a given fixed value at which maximum absorption is expected to occur according to Woodward rules. This given fixed value is called the base or parent value. If the two double bonds are trans to each other, the diene is said to be transoid. If the two double bonds belong to different rings, the system is said to be heteroanular and the base value in each case is 215nm. If the double bonds are cis to each other (cisoid), or the two double bonds are in the same ring (homoanular), then the base value is 253nm.

Since λmax = base value + ∑ substituent contributions + ∑ other contributions, if the other contributions are not very significant, homoanular diene will have a greater λmax because of its larger base value compared to heteroanular diene. This correlates well with the fact that conjugated systems absorb at a longer wavelength.

4 0
3 years ago
He then split the list of elements into several columns so that elements beside each other had similar ?
kodGreya [7K]

Answer:

Properties

Explanation:

Mendeleev realized that the physical and chemical properties of elements were related to their atomic mass in a 'periodic' way, and arranged them so that groups of elements with similar properties fell into vertical columns in his table.

3 0
3 years ago
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