When potassium is added to water the metal melts and floats. It moves around very quickly in the surface of the water.
Answer:
B
Explanation:
when elements reacts to form a compound the elements properties changes completely. This happens due to the fact that a chemical reaction has taken place. In a chemical change new substances are formed and the properties of the products differ entirely from that of the reactant.
for example if hydrogen combines with oxygen to form water, the property of hydrogen differs from oxygen and also both differs chemically when compared to water.
I’m sorry but I cannot see the picture
Answer: I think that trains move faster then cars! Buttt, The trains are much stronger and bigger, then cars or trucks. Even if they move slowly they can still crush something smaller then them.
Explanation: ( didnt really understand the question, but i tried)
Just multiply 9.5 by Avogadro's number. You get 5.72 x 10^24 atoms.