If a reaction occurs, what will be the products of the unbalanced reaction below?
Zn(s) + HCl(aq)

A. ZnCl2(s) + H2(9)
B. ZnH(s) + Cl2(9)
C. HZnCI(s)
D. No reaction will occur.

There are main groups in the modern periodic table of elements

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line