Sarah is looking for a way to move her boat across the water without touching it directly. She included paperclips in the boat design so that the magnetic attraction between the paperclip and the magnet would pull the boat along the water's surface. Which statement is NOT an accurate representation of what is happening with Sarah's boat? A) The attraction between the boat and the magnet pulls the boat toward the magnet. B) As Sarah gets further from the boat with her magnet, the attraction will decrease. C) The attraction between the boat and the magnet pushes the boat away from the magnet. D) The more paperclips that are attached to the boat, the stronger the force of attraction to the magnet.
Answers: 2
Chemistry, 22.06.2019 14:20
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Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
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Chemistry, 22.06.2019 20:20
Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa
Answers: 2
Sarah is looking for a way to move her boat across the water without touching it directly. She inclu...
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