When a magnet is moved alongside a wire, what happens?
A. the electric movement stops
B. the...
Answers: 1
Chemistry, 22.06.2019 09:30
Which formula can be used to calculate the molar mass of hydrogen peroxide
Answers: 1
Chemistry, 22.06.2019 18:10
Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
Answers: 1
Chemistry, 23.06.2019 11:30
Jenny places a strip of ph paper into a solution. when she removes the ph paper, it has turned yellow-green. what should jenny do next to determine the ph of her solution? a. use a different testing method because the ph paper should not change colors b. place the ph paper into a machine that reads the ph of the solution c. compare the ph paper's color with the color of ph paper from another solution d. compare the ph paper's color with a chart of colors and ph ranges
Answers: 1
Chemistry, 23.06.2019 16:00
How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a) 3.4 mol h2so4 b) 6.8 mol h2so4 c) 10.2 mol h2so4 d) 13.6 mol h2so4 a) 3.4 mol h2so4
Answers: 1
Chemistry, 30.06.2019 07:00
Social Studies, 30.06.2019 07:00
Mathematics, 30.06.2019 07:00