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Please I need help with question 17 and 18 and it’s very hard and I’m struggling with it and if you need to see the picture big then click on it and it will be big
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Please I need help with question 17 and 18 and it’s very hard and I’m struggling with it and if you need to see the picture big then click on it and it will be big

Please I need help with question 17 and 18 and it’s very hard and I’m struggling with-example-1
User Jahira
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2 Answers

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17 is oxygen and 18 is carbon dioxide
User Dumpen
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17. Carbon Dioxide.
18. Oxygen
User Rma
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6.0k points
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