0 of 5 Questions completed
Questions:
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading…
You must sign in or sign up to start the quiz.
You must first complete the following:
Time has elapsed
Average score |
|
Your score |
|
Pos. | Name | Entered on | Points | Result |
---|---|---|---|---|
Table is loading | ||||
No data available | ||||
Lucy is finding out if the speed of the reaction between solid calcium carbonate and acid changes if she uses different sized pieces of the solid. Which of these statements is correct?
Jermaine repeats a reaction 5 times when he is investigating exothermic reactions. These are the temperature changes he records: 10.4 °C, 10.8 °C, 10.5 °C, 11.0 °C, 10.7 °C Which word could be used to describe his results?
Scientists use standard symbols to represent elements and compounds. Write down the formulae for these substances:
Carbon Dioxide:
Hydrochloric Acid:
Which word describes a change from particles being widely spaced and moving around freely, to moving around very close to each other?
Which technique would you use to separate two liquids with different boiling points?
This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Click here