Chemistry, 22.12.2020 14:00 dayanirisr45
A)Calculate the mass of NaNO3 that heated strongly and produced 4.5 dm3(cubic decimeter) of O2 gas.
The chemical equation for a chemical reaction is given below (2)
2NaNO3 ---> 2NaNO2 +O2
b) Calculate the concentration of HCl solution formed by dissolving 200 g HCl in 300 CM3 of water.(2)
Answers: 2
Chemistry, 22.06.2019 08:40
Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
Answers: 2
Chemistry, 22.06.2019 18:30
The table lists the lattice energies of some compounds.compoundlattice energy (kj/mol)lif –1,036licl –853naf –923kf –821nacl –786which statement about crystal lattice energy is best supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf.the lattice energy increases as the cations get larger, as shown by lif and licl.the lattice energy decreases as cations get smaller, as shown by nacl and naf.the lattice energy decreases as the cations get smaller, as shown by naf and kf.
Answers: 3
Chemistry, 22.06.2019 20:30
Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.
Answers: 1
A)Calculate the mass of NaNO3 that heated strongly and produced 4.5 dm3(cubic decimeter) of O2 gas....
Mathematics, 29.08.2019 02:30
History, 29.08.2019 02:30
Health, 29.08.2019 02:30
History, 29.08.2019 02:30
Chemistry, 29.08.2019 02:30
Business, 29.08.2019 02:30
Social Studies, 29.08.2019 02:30
Biology, 29.08.2019 02:30
Chemistry, 29.08.2019 02:30
Business, 29.08.2019 02:30
Mathematics, 29.08.2019 02:30
Mathematics, 29.08.2019 02:30
Health, 29.08.2019 02:30