Chemistry, 11.03.2021 20:10 Carlosruelas5409
3. The diagram shows an investigation in a science classroom. Students pull the same mass up an inclined plane propped up on five blocks, then six, seven, and eight blocks. Each time, they use a spring scale to measure the forces needed to pull the mass up the inclined plane. They record their observations in a chart. What conclusion can be drawn from the investigation?
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Chemistry, 22.06.2019 09:00
Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology
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the mississippians were considered to be horticulturalists, which means they were
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Chemistry, 22.06.2019 14:30
An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.
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Chemistry, 22.06.2019 20:00
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.
Answers: 3
3. The diagram shows an investigation in a science classroom. Students pull the same mass up an incl...
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