Chemistry, 25.03.2021 23:00 live4dramaoy0yf9
Water cycle is a bio geo-chemical cycle that is a closed system. Which of these sentences describe survival stage that occurs in the water cycle? A. water enters an exits system boundaries of the cycle.
B. Water can change from solid to liquid at certain points in the cycle.
C. Ice forms anew adding matter to the cycle.
D. Water vapor condenses subtracting energy from the cycle.
Answers: 2
Chemistry, 22.06.2019 10:00, Cythina2007
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90
Answers: 1
Chemistry, 22.06.2019 18:00, ameliaxbowen7
Heat is the total potential energy of a substance that can be transferred. true false
Answers: 1
Chemistry, 22.06.2019 20:00, jalenevoyles
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
Chemistry, 22.06.2019 23:00, Mw3spartan17
What extra step distinguishes fermentation from glycolysis
Answers: 1
Water cycle is a bio geo-chemical cycle that is a closed system. Which of these sentences describe s...
Chemistry, 28.01.2020 09:31
Mathematics, 28.01.2020 09:31
Mathematics, 28.01.2020 09:31
Social Studies, 28.01.2020 09:31