GRADE 9 SCIENCE

16. Baking soda and vinegar are mixed in a stoppered test tube. Before the test, the following masses were recorded. Test tube 50 g. Stopper 10 g. Vinegar 15 g. Baking soda 9 g. The mass of just the products from this reaction would be. 84 g. 60 g. 24 g. 22 g. 17. The chemical name for rust is Iron III oxide. Knowing that the ionic charge ................
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