Answer:
C. 6
Explanation:
because the 2 and 4 are the amount of that kind of atom and if you add them up you get 6
P1v1/t1 = p2v2/t2
<span>
0.9atm ( 50ml)/298K = 1atm x (v) / 273 </span>
<span>solve for v </span>
<span>0.9 x 50 x 273 /298 x 1= v </span>
<span>v = 41.2 ml</span>
(D) It shares to electrons with another non metal. Take H2O for example. Oxygen has 6 valence electrons, Hydrogen has one. Each valence electron on hydrogen will share its electron with one of the two remaining unpaired electrons of Oxygen.
Answer:
Pitch:it refers to the highest and lowness of a sound.
Wavelength: It is the distance measured from one crest to another, or from one trough to another.
Refraction of Light: The light bends as it travels from one medium to another.
Reflection of Light: It happens when light bounces back after hitting a well-polished surface.
Crest: The highest point of the wave from the center.
<u>I hope this helps! :)</u>
