Elements, compounds, mixtures
Quiz by Flores, Samantha - Teacher Science, Capt Walter E Clarke Ms
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50 questions
Show answers
- Q1Which of the following is an example of a mixture?Carbon dioxideGoldSodium chlorideSalt water30s
- Q2What is a compound?A substance made of two or more different elements chemically bonded togetherA type of mixture that can be easily separatedA physical combination of two or more substancesA pure element found on the periodic table30s
- Q3Which of the following is NOT a characteristic of a mixture?Has a fixed compositionCan have varying propertiesContains two or more substancesCan be separated by physical means30s
- Q4What distinguishes an element from a compound?An element cannot be broken downAn element is made of only one type of atomA compound is a mixture of elementsA compound is made of only one type of atom30s
- Q5Which of the following is an example of an element?Carbon dioxideSandWaterOxygen30s
- Q6Which of the following best describes a homogeneous mixture?A mixture that can be easily separated into its componentsA mixture that only contains one type of substanceA mixture that has visible different componentsA mixture that has a uniform composition throughout30s
- Q7What happens when a chemical bond forms between atoms?Atoms lose their identityAtoms become invisibleAtoms share or transfer electronsAtoms become more massive30s
- Q8Which of the following is a property of compounds?They are always gases at room temperatureThey have a unique set of properties different from their constituent elementsThey can be separated by physical means easilyThey consist of only one type of atom30s
- Q9Which of the following is an example of a chemical change?Dissolving sugar in waterRust forming on ironChopping woodMelting ice30s
- Q10Which of the following is true about mixtures?They retain the individual properties of their componentsThey cannot be separatedThey always produce a new substanceThey have a fixed ratio of components30s
- Q11Which of the following is a pure substance made of two or more different elements chemically combined?AlloyMixtureElementCompound30s
- Q12What type of mixture has a uniform composition throughout?Homogeneous mixtureHeterogeneous mixtureElementCompound30s
- Q13Which of the following is an example of an element?OxygenCarbon DioxideSaltWater30s
- Q14What do you call a physical combination of two or more substances that can be separated by physical means?SolventMixtureCompoundElement30s
- Q15Which of the following represents a combination of two or more elements in fixed proportions?Saturated mixtureCompoundSolutionAlloy30s