Elements compounds and mixtures
Quiz by SUMMER EISENHART
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14 questions
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- Q1Which of the following is a characteristic of a compound?It consists only of one type of atom.It is made up of two or more different elements chemically bonded together.It is always a solid at room temperature.It can be separated by physical means.30s
- Q2Which of the following best describes a mixture?It can only be made of solids.It is made up of two or more substances that are not chemically bonded.It always has the same properties throughout.It has a fixed composition.30s
- Q3What is an element?A combination of two or more compounds.A mixture of different substances.A substance that cannot be broken down into simpler substances by chemical means.A material that can be separated into individual parts easily.30s
- Q4Which of the following is an example of a compound?Oxygen (O2)Salt waterWater (H2O)Iron (Fe)30s
- Q5Which of the following is true about homogeneous mixtures?They always consist of solid materials.They can be easily separated into individual components.They have a uniform composition throughout.They contain visibly different substances or phases.30s
- Q6Which statement is true about elements in the periodic table?Each element is defined by the number of protons in its nucleus.Elements can be made by combining compounds.All elements are metals.Elements have varying numbers of electrons only.30s
- Q7Which of the following is a property of a chemical change?There is no change in energy.New substances are formed with different properties.The process is usually reversible.The original substances can be easily recovered.30s
- Q8Which of the following best describes a physical change?It is always accompanied by a temperature change.The chemical composition of the substances involved changes.New substances are created from the original materials.The substance's identity remains the same, but its form may change.30s
- Q9Which of the following is an example of a heterogeneous mixture?SteelCarbon dioxideSaladSugar water30s
- Q10Which of the following is an example of a mixture?SaltwaterOxygenSodium chlorideCarbon dioxide30s
- Q11What is the main difference between an element and a compound?An element consists of only one type of atom, while a compound consists of two or more different types of atoms chemically bonded together.Compounds are found only in nature, while elements are man-made.Elements always exist as solid forms, while compounds are always gases.An element can be broken down into simpler substances, but a compound cannot.30s
- Q12What term describes a combination of two or more substances that are not chemically bonded and can be separated by physical means?MixtureElementCompoundSolution30s
- Q13Which of the following describes a homogeneous mixture?A mixture made of only one type of substance.A mixture that has a uniform composition throughout.A mixture that can only be separated by chemical means.A mixture where the components can be easily distinguished.30s
- Q14Which of the following statements about mixtures is true?Mixtures are always homogeneous.Mixtures cannot be made from compounds.Mixtures can be separated by physical methods.Mixtures have a fixed composition.30s