Chemistry, 09.04.2021 03:00 blakemccain1928
In an experiment to determine the empirical formula of magnesium oxide, a student weights an empty crucible then adds a strip of magnesium metal and reweighs the crucible. The crucible and magnesium are heated with a burner flame, which ignits the magneisum and forms a grey-white solid. After cooling, the crucible and solid are reweighed and the date are analyzed to given an empirical formula of Mg5O4. Which could account for the observed Mg5O4 results rather than the expected MgO?
Answers: 3
Chemistry, 22.06.2019 05:30
The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland
Answers: 1
Chemistry, 22.06.2019 05:50
What happens when the temperature of a solution increases?
Answers: 2
Chemistry, 22.06.2019 12:40
When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign
Answers: 2
Chemistry, 22.06.2019 15:20
An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.
Answers: 1
In an experiment to determine the empirical formula of magnesium oxide, a student weights an empty c...
Mathematics, 23.02.2021 17:50
Mathematics, 23.02.2021 17:50
Mathematics, 23.02.2021 17:50
English, 23.02.2021 17:50
Mathematics, 23.02.2021 17:50
Health, 23.02.2021 17:50
Chemistry, 23.02.2021 17:50
English, 23.02.2021 17:50
Chemistry, 23.02.2021 17:50