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- 1. Multiple ChoiceAir is a mixture of several different kinds of molecules.TrueFalse
- 2. Multiple ChoiceThe tiniest bit of water that still is water is a molecule of water.TrueFalse
- 3. Multiple ChoiceAn oxygen molecule usually has two oxygen atoms.TrueFalse
- 4. Multiple ChoiceHydrogen is a compound.TrueFalse
- 5. Multiple ChoiceThe properties of a compound are always the same as the properties of the elements in the compound.TrueFalse
- 6. Multiple ChoiceCarbon dioxide is a compound.TrueFalse
- 7. Multiple ChoiceFleece is a material that can be made from recycled plastic soda bottles.TrueFalse
- 8. Multiple Choice"Bone cement" is made up of one atom of hydrogen and two atoms of oxygen.TrueFalse
- 9. Multiple ChoiceMany new materials are made up of a few kinds of molecules joined together in very long chains.TrueFalse
- 10. Multiple ChoiceSalt is an example of a compound.TrueFalse
- 11. Multiple ChoiceTwo or more atoms joined together make up a _____.compoundmoleculesolution
- 12. Multiple ChoiceA substance that is made up of atoms of more than one element is a _______.compoundrustmolecule
- 13. Multiple ChoiceOxygen in the air combines with iron molecules on a frying pan to form _______.chemical propertyphysical propertyrust
- 14. Multiple ChoiceThe center of an atom is the _____.electronnucleusneutron
- 15. Multiple ChoiceIn an expression H2O the "2" represents ____.2 atoms of hydrogen2 atoms of oxygen2 molecules of water
- 16. Multiple ChoiceA new material discovered for the medical field is _____.fleeceGore-Texbone cement
- 17. Multiple ChoiceGroups of elements are found in the periodic table in ___.columnsrowsdiagonals
- 18. Multiple ChoiceMatter has mass and takes up ____.mixturecompoundspace
- 19. Multiple ChoiceThe smallest unit of a compound is a ___.moleculeatommatter
- 20. Multiple ChoiceWhich of these is an example of a compound?ironcalciumrust
- Answer choicesTagsAnswer choicesTags