Which type of measurements is used more often by scientists?
a- weight.
b- mass.
c-...
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, 22.06.2019 21:00
What is the chemical formula for the compound formed between sodium and flour one
Answers: 1
Chemistry, 23.06.2019 00:00
The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?
Answers: 2
Chemistry, 23.06.2019 00:30
Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.
Answers: 1
Mathematics, 25.09.2019 22:50
Mathematics, 25.09.2019 22:50
Biology, 25.09.2019 22:50
Health, 25.09.2019 23:00
Biology, 25.09.2019 23:00
Biology, 25.09.2019 23:00
History, 25.09.2019 23:00
Social Studies, 25.09.2019 23:00
World Languages, 25.09.2019 23:00
Health, 25.09.2019 23:00