Which change is chemical?
A.) water evaporating: liquid water becoming gaseous water
B.) wat...
Chemistry, 18.08.2021 18:50 unknown5351
Which change is chemical?
A.) water evaporating: liquid water becoming gaseous water
B.) water boiling: solid water becoming gaseous water
C.) water freezing: liquid water becoming solid water
D.) water undergoing electrolysis: liquid water becoming oxygen and hydrogen molecules
Answers: 2
Chemistry, 21.06.2019 23:00, orlando19882000
Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende
Answers: 1
Chemistry, 22.06.2019 10:00, halohero7
3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?
Answers: 2
Mathematics, 08.02.2021 02:30
Mathematics, 08.02.2021 02:30
Mathematics, 08.02.2021 02:30