chemistry lad
chemistry_lad
Newbie
Posts: 14
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« on: March 30, 2017, 05:11:50 AM » |
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« edited: March 30, 2017, 05:39:42 AM by chemistry lad »
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1.) What is the most common element (by mass) forming the planet Earth?
A) carbon
B) oxygen
C) iron
D) silicon
2.) Why is White Sands Desert in New Mexico so purely white?
A) It is gypsum.
B) It is very fine grained sand.
C) It is white quartz.
D) It is an optical illusion.
3.) Which of the following is true for a solution with the pH = 0 ?
A) The OH- ion concentration is smaller than the H+ ion concentration.
B) The OH- ion concentration is greater than the H+ ion concentration.
C) The OH- ion concentration is equal of the H+ ion concentration.
D) Such solution doesn't exist.
4.) What is caesium and iodine's favorite TV show?
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