Answers: 1
Chemistry, 22.06.2019 11:50
Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘
Answers: 2
Chemistry, 22.06.2019 17:30
The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?
Answers: 2
Chemistry, 22.06.2019 17:50
Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?
Answers: 2
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
How many grams of magnesium chloride can be produced if we react 32.50 g mg with 32.50 g hcl...
Mathematics, 23.07.2019 14:00
English, 23.07.2019 14:00
History, 23.07.2019 14:00
Social Studies, 23.07.2019 14:00
Biology, 23.07.2019 14:00
Chemistry, 23.07.2019 14:00
Biology, 23.07.2019 14:00
Biology, 23.07.2019 14:00
Biology, 23.07.2019 14:00
Biology, 23.07.2019 14:00
History, 23.07.2019 14:00
Social Studies, 23.07.2019 14:00
Mathematics, 23.07.2019 14:00
History, 23.07.2019 14:00
Geography, 23.07.2019 14:00