Alpha particles are relatively heave and can be stopped by a sheet of paper.
The answer is A, biogeochemical cycles.
<span>The purpose of washing the product with NaOH is simply to
neutralize any acid which remained or leaked after the 1st initial
separation. The NaOH base reacts with the acid to form neutralization reaction products
which are soluble in water.</span>
Answer:
relating to or denoting the business of entertaining clients, conference delegates, or other official visitors.
I think your answer will be B. 273 k
