7.6A Element and Compound Unit One Review
Quiz by Gregorio Martinez
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5 questions
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- Q1What key feature distinguishes a compound from an element?A compound is made up of two or more different types of atoms, while an element consists of only one type of atom.Compounds can only exist in liquid form, whereas elements can be solid or gas.Compounds consist of individual atoms that do not combine into molecules.Elements are formed only in natural processes, but compounds are made artificially.30s
- Q2Which of the following statements about chemical symbols is correct?Chemical symbols use numbers to represent the number of atoms in a molecule.Chemical symbols are always three letters long.Chemical symbols can represent compounds instead of individual elements.Chemical symbols are one or two letter abbreviations for elements, with the first letter always capitalized.30s
- Q3Which of the following represents a key difference between elements and compounds?Elements can exist as compounds, but compounds cannot exist as elements.Elements are always gases, while compounds can be solids or liquids.Elements cannot be decomposed into simpler substances, but compounds can be broken down into their constituent elements.Elements have a fixed number of atoms, while compounds have variable atom counts.30s
- Q4Which of the following is a compound?Water (H2O)Oxygen (O2)Hydrogen (H2)Gold (Au)30s
- Q5
Place the following Symbols as Elements or Compounds
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