Which statement is true of a chemical reaction? (science) A. Energy is not transferred.

B. Energy is either released or absorbed.

C. Energy is always absorbed.

D. Energy is always released.

Your answer is:

B. Energy is either released or absorbed

Explanation:

Energy can be transferred in many ways like if you touch metal or something and you get a shock, or when your energy goes into your phone (i guess)

That's why we learn things like conductors and insulators. But the point is you can transfer energy. (if you don't know what a conductor and insulator is, basically a conductor is like metal or things that helps energy flow whereas insulators are like wood and stops the energy flow)

[so A is incorrect]

Energy can also be released because one thing cannot have an unlimited amount of energy. For example a ball bouncing or a human running, a ball will lose energy ever time it bounces which is why it gets lower and lower, and a human just loses energy.

Energy can be absorbed but as I said earlier, it can also be transferred.

Like if you are jumping on a floor, THATS WHY THERE ARE SHOCK PROOF FLOORS you are basically giving off energy to the floor and sometimes like if you jump off somewhere high and it hurts, that is cause of the energy.

[so C and D is wrong]

So the answer is B!

*Now I am kinda spouting nonsense but just know the answer is b lol, sorry if my answer is late but anyone on this page that happens to read this, good luck on your quiz :)*

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.