1) Which of the following best describes an element? a) Two or more substances chemically bonded together b) Two or more substances physically combined. c) A pure substance consisting of only one type of atom d) A substance that can be separated by physical means. 2) What is the key difference between a compound and a mixture? a) Compounds can be separated by physical means, while mixtures cannot. b) Compounds are chemically bonded in a fixed ratio, while mixtures are physically combined and keep their individual properties c) Mixtures are only solids, while compounds can be solids, liquids, or gases. 3) Which of the following is an example of a compound? a) Salt water b) Air c) Carbon Dioxide d) Oxygen 4) A student stirs sand into a beaker of water. Which term best describes the resulting material? a) Element b) Compound c) Mixture d) Pure Substance 5) Which statement is FALSE about compounds? a) The properties of a compound are different from the properties of the elements that form it b) They are represented by a chemical formula. c) They can be separated into their components by heating or filtering d) They are formed as a result of a chemical reaction. 6) When naming a simple compound made of a metal and a nonmetal, which rule is correct? a) The nonmetal is named first, and the metal keeps its original name b) Both the metal and the nonmetal get the suffix -ide c) The metal is named first, and the nonmetal is named second with the suffix -ide d) Both elements keep their original name, separated by a hyphen. 7) what is the correct name for the compound MgO a) Magnesium Oxygen b) Magnesiumoxide c) Oxygen Magneside d) Magnesium Oxide 8) What elements is the nonmetal elements in the compound Lithium Floride a) Lithium b) Floride c) Florine d) Lithide 9) What is the compound name for a product made from Aluminum and Hydrogen a) Aluminum Hydride b) Hydrogen Alumide c) Alumide Hydrogen d) Hydrogen Aluminum 10) What would the compound name for Silver and Oxygen a) Oxygen Silvide b) Silvide Oxide c) Oxide Silver d) Silver Oxide 11) which of these elements is a nonmetal a) Zinc b) Helium c) Mercury d) Lithium 12) which of these elements is a metal a) Nitrogen b) Phosphorus c) Sulfur d) Sodium 13) what is the compound name for a product made from Chlorine and Copper a) Chlorine Coppide b) Chloride Copper c) Copper Chloride d) Copper Chlorine 14) Which of the following is not a property of a metal a) Shiny b) Malleable c) Conduct electricity d) Buoyant 15) Which of the following is not a property of nonmetals a) Weak b) Brittle c) Conduct heat d) Dull 16) Which of the following is a mixture a) Orange juice b) Milk c) Coffee d) Water 17) Which of the following is a compound a) Xenon b) Neon c) Salt d) Carbon 18) Which of the following is an element a) Krypton b) Tea c) Glass d) Sodium Chloride 19) What elements is Magnesium Sulfide a) Magnesium and Sulfide b) Magnesium and Sulfur c) Sulfur and Magneside d) Sulfide and Magnesium

Compounds & Mixtures

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