Answers: 3
Chemistry, 22.06.2019 06:30
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
Answers: 1
Chemistry, 23.06.2019 11:30
Bridget is in science class. her teacher gives her two unknown substances and asks her to determine their relative ph. she places a piece of red litmus paper into both substances. the litmus paper turns purple when she places it into substance i. the litmus paper turns blue when she places it into substance ii. a. substance i is a neutral substance and substance ii is an acid. b. substance i is a neutral substance and substance ii is a base. c. substance i is an acid and substance ii is a base. d. substance i is a base and substance ii is a neutral substance.
Answers: 1
Chemistry, 23.06.2019 15:40
The poh of a solution is 6.0. which statement is correct? use poh=-log[oh and ph+poh= 14 o o o the ph of the solution is 20.0. the concentration of oh ions is 1.0 x 10-8 m- the concentration of oh ions is 1.0 x 106 m- the ph of the solution is 8.0.
Answers: 3
Chemistry, 23.06.2019 17:50
The reaction of sodium hydrogen carbonate and acetic acid is described above. using the equation below, identify the proper coefficients for the balanced equation that upholds the law of conversation of mass
Answers: 3
The is the organelle that recycles unneeded molecules
is the answer vacuole, mitochondria, or lyso...
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