Ad 21. (a) Describe and explain what happens when magnesium burns in a jar of carbon(IV) oxide. Give the equation of the reaction.
(b) Describe and explain what happens when carbon(IV) oxide is passed into lime water for a long time. What happens when the final product is heated? Give the equations of the reactions taking place.
(c) Which properties of carbon(IV) oxide account for its use in (i) fire extinguisher? (ii) refrigeration of fruits?
(d) Describe the composition of baking powder and explain the part it plays in the baking industry e
Answers: 2
Chemistry, 22.06.2019 11:00, hannah5143
The human eye contains a molecule called 11-cis-retinal that changes shape when struck with light of sufficient energy. the change in shape triggers a series of events that results in an electrical signal being sent to the brain that results in vision. the minimum energy required to change the conformation of 11-cis-retinal within the eye is about 164 kj/mol.
Answers: 2
Chemistry, 22.06.2019 18:30, rosie20052019
You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas
Answers: 1
Ad 21. (a) Describe and explain what happens when magnesium burns in a jar of carbon(IV) oxide. Give...
Mathematics, 11.08.2021 06:50
Mathematics, 11.08.2021 06:50