Chemistry, 26.02.2021 19:30, TrucerZ6707
A substance undergoes a chemical change. The result is a new substance with new properties. However, when a substance undergoes a physical change, it is often reversible. The substance has new physical properties, but its chemical properties do not change. Based on your observations of the combinations of salt and water as compared to baking soda and vinegar, which reactant went through a chemical change? Use evidence to explain your choice.
Answers: 3
Chemistry, 21.06.2019 15:30, kristineford198
Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.
Answers: 3
Chemistry, 22.06.2019 12:30, AnastasiaJauregui
Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together
Answers: 1
A substance undergoes a chemical change. The result is a new substance with new properties. However,...
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