Pertanyaan 1Pilihan gandaWhat is an element?A substance made of one type of atomA mixture of compoundsA combination of moleculesA compound of different substances
Pertanyaan 2Pilihan gandaWhich of the following is a compound?Oxygen (O2)Water (H2O)Gold (Au)Helium (He)
Pertanyaan 3Pilihan gandaWhat is a molecule?A group of atoms bonded togetherA single type of atomA large collection of elementsA type of mixture
Pertanyaan 4Pilihan gandaWhich of the following best describes an atom?The smallest unit of a chemical elementA large moleculeA collection of compoundsA type of mixture
Pertanyaan 5Pilihan gandaWhat is a mixture?A combination of two or more substances that are not chemically bondedA pure chemical elementA single moleculeA chemical compound
Pertanyaan 6Pilihan gandaWhich of the following is an example of a mixture?SaltwaterCarbon dioxideDiamondIron
Pertanyaan 7Pilihan gandaWhat distinguishes a compound from a mixture?Compounds have elements chemically bonded; mixtures do notCompounds contain only one element; mixtures contain manyCompounds are always gases; mixtures are solidsCompounds cannot be separated; mixtures can be
Pertanyaan 8Pilihan gandaWhich of the following is a characteristic of elements?Elements cannot be broken down into simpler substancesElements are always liquidElements are made from two or more types of atomsElements change their properties when mixed
Pertanyaan 9Pilihan gandaHow are molecules related to compounds?Compounds are molecules that consist of two or more different elementsMolecules are always larger than compoundsCompounds and molecules are the sameMolecules cannot form compounds
Pertanyaan 10Pilihan gandaWhat happens when a compound is formed?Atoms of different elements bond togetherElements remain separateAtoms of the same element combineA mixture is created