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Guest practice

Half Book 2

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1

Chloe is studying the disadvantages of wastewater. She knows that wastewater contains harmful substances. Which of the following is a component of wastewater?

2

Chromatography can be used to separate:

3

Ahmed is conducting an experiment to determine the boiling point of water. He records the temperature every minute. What type of data is Ahmed collecting?

4

Which reagent is used to test chloride ions?

5

Which practice helps prevent water-borne diseases?

6

Khalid is learning about the preparation of alkanes by the reduction of alkyl halides. He uses 2-bromobutane (C4H9Br) and reduces it. What alkane is formed?

7

Which indicator turns pink in basic solution?

8

Fatima is studying saturated hydrocarbons. She learns that alkanes are saturated hydrocarbons. What does saturated mean in this context?

9

Calibration of instruments improves:

10

Which hydrocarbon has the molecular formula C4H10?

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