Chemistry, 19.03.2021 23:20 azariahbelfield
Worth 100 points
(1)What are the pH values you determined from comparing the colors of these 10 solutions after testing with litmus paper and universal indicator with the pH-value color cards?
(2)Sort these 10 solutions as acid (strong or weak) or base (strong or weak) based on their respective pH value.
(3)What are some uses of these solutions in your daily life?
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
Chemistry, 23.06.2019 10:20
El amoniaco y el fluor reaccionan para formar tetrafluoruro de dinitrogeno y fluoruro de hidrogeno. segun la reaccion: nh3 + f2 â n2f4 + hf si reaccionan 5 gramos de amoniaco y 20 gramos de fuor, Âżcuantos gramos de fluoruro de hidrogeno se producen?
Answers: 2
Chemistry, 23.06.2019 15:00
Charlene puts together two isosceles triangles so that they share a base, creating a kite. the legs of the triangles are 10 inches and 17 inches, respectively. if the length of the base for both triangles is 16 inches long, what is the length of the kiteâs other diagonal? 6 inches inches inches 21 inchesanswer is d on e2020edit: it's geometry not chemistry, sorry.
Answers: 3
Chemistry, 23.06.2019 17:10
What can form as a result of a chemical reaction? what can form as a result of a chemical reaction? compounds isotopes alpha particles beta particles
Answers: 2
Worth 100 points
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