Describe how to prepare oxygen gas in the lab.
Important Questions on In the Lab
Two solutions W and Y are tested with universal indicator paper.
Solution W: the indicator paper turns red
Solution Y: the indicator paper turns orange
Which solution could have a of , and which could have a of ?
Two solutions W and Y are tested with universal indicator paper.
Solution W: the indicator paper turns red
Solution Y: the indicator paper turns orange
Which type of solution is Y?
Two solutions W and Y are tested with universal indicator paper.
Solution W: the indicator paper turns red
Solution Y: the indicator paper turns orange
Further tests are carried out in test tubes. A piece of magnesium is added to solution W. What will you observe in the test tube?
Two solutions W and Y are tested with universal indicator paper.
Solution W: the indicator paper turns red
Solution Y: the indicator paper turns orange
Further tests are carried out in test tubes. A piece of magnesium is added to solution W. What is formed as a result of the reaction?
Two solutions W and Y are tested with universal indicator paper.
Solution W: the indicator paper turns red
Solution Y: the indicator paper turns orange
Further tests are carried out in test tubes. A piece of magnesium is added to solution W. How will solution Y compare, in this reaction?
Two solutions W and Y are tested with universal indicator paper.
Solution W: the indicator paper turns red
Solution Y: the indicator paper turns orange
A solid, which is a sodium compound, is added to solution W. A gas is given off. It turns limewater milky. What colour will the solid be?
Two solutions W and Y are tested with universal indicator paper.
Solution W: the indicator paper turns red
Solution Y: the indicator paper turns orange
A solid, which is a sodium compound, is added to solution W. A gas is given off. It turns limewater milky. Name the gas released.
Two solutions W and Y are tested with universal indicator paper.
Solution W: the indicator paper turns red
Solution Y: the indicator paper turns orange
A few drops of barium nitrate solution are added to a solution of W. A white precipitate forms. Name the white precipitate.
