40 60 100 150 5 10 15 20 25 30 40 60 10 walume of hl30 50 63 75 83 89 94 100 101 called com (a) slunch the experimental set-up. () ploe the volume of hydrogen gas collected a t the time taken c) saan the time taken for the reaction to rea completion (2) expathe gradual decrease of the reaction (6) why did the student stop taking readings a ncond intervals after 30 seconds? explain the importance of taking readings n o successive readings agree. on the same axes, sketch and explain the one that would be obtained at a higher temperature. 6) lower acid concentration
An unknown substance has been shown to have metallic bonds. which of the following is most likely a property of this substance? a. low conductivity b. low boiling point c. high malleability d. high solubility in water