Physics, 31.08.2021 14:20 morgannwaldrupp
1) Define a Compound 2) Calculate the percentage of chromium in K, Cro- An inorganic substance was analysed and found to be containing 65,31% Of oxygen 32,65% Of Sulphur and X amount of hydrogen 3. 1. Define empirical formula 3.2.) Calculate the percentage of hydrogen element in the substance. 3.3) Determine the empirical formula for the compound. 6,2579, of hydrated copper sulphate was heated, and during heating the moss quas recorded. The mass a the content was decreasing and apter a while the mass remained unchanged at 4g. 4.4) Give a reason why mass decreased 4.2) Calculate the number of motes a water in the original hydrated salt
Answers: 1
Physics, 21.06.2019 22:30, jadalysrodriguez
The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force
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Physics, 22.06.2019 07:30, sansyboy7891
Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.
Answers: 2
Physics, 22.06.2019 14:40, hastephens03
According to valence bond theory, which orbitals overlap in the formation of the bond in hf according to valence bond theory, which orbitals overlap in the formation of the bond in hf 2s on h and 2p on f 1s on h and 2s on f 1s on h and 1p on f 1s on h and 2p on f 1s on h and 3p on f
Answers: 3
1) Define a Compound 2) Calculate the percentage of chromium in K, Cro- An inorganic substance was a...
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