Answer:
Because the most reactive elements are<em> HALOGENS</em>.
5 ml=5 cm³ , density=mass/volume=45/5= 9 g/cm³ therefore answer B
A sodium chloride is like most of the ionic compounds
existing here on earth in which they are composed of having a high melting
point and by this, if found in underground rock deposits, they are usually in a
form of solid.
Answer:
A decrease in temperature decreases
the number of collisions between molecules
. The reaction rate will decrease
Explanation: