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- 1. Multiple Choice
Substances that dissociate in water and release hydrogen ions (H+)basesacidscompoundsions - 2. Multiple ChoiceUsed to indicate acidity or alkalinity of a substance. Ranges from 0-14. Each unit has a 10 times difference in acidity or alkalinityacid scalebase scalepH scaleion scale
- 3. Multiple ChoiceWhich is NOT one of the four elements that make up over 90% of the human bodyCarbonNitrogenChlorineOxygen
- 4. Multiple ChoiceWhich of the following is NOT true of atoms?They are composed of molecules.They can combine with other atoms.They make up elementsThey are extremely small
- 5. Multiple ChoiceA negatively charged particle moving around the nucleus of an atomneutronprotonelectronion
- 6. Multiple ChoiceWhat particle is found in the nucleus and has no charge?electronneutronprotonatom
- 7. Multiple ChoiceAn atom becomes negatively charged bygaining an electronlosing an electronlosing a proton
gaining a neutron - 8. Multiple ChoiceThe space surrounding the nucleus of an atom containsprotonselectronsneutronsions
- 9. Multiple ChoiceNumber of protons that an atom hasAtomic symbolAtomic NumberAtomic MassMass Number
- 10. Multiple ChoiceWhat determines the chemical properties of an atom?The number of protons in the nucleusNumber of electrons in the outside shellThe number of protons in the outside shellThe number of electrons in the nucleus
- 11. Multiple ChoiceAtoms having the same number of protons but different numbers of neutronsmoleculeatomcompoundisotopes
- 12. Multiple ChoiceTwo or more atoms combinedMoleculeCompoundIsotopeIon
- 13. Multiple ChoiceTwo or more different atoms combinedMoleculeCompoundIsotopeIon
- 14. Multiple ChoiceBond created by electrical attraction between atoms (+ and -)Ionic bondCovalent bondHydrogen bondvan der Waals
- 15. Multiple ChoiceAttraction between slightly positive atom of one molecule to a slightly negative atom of another moleculeionic bondhydrogen bondcovalent bondvan der Waals
- 16. Multiple ChoiceBond created by the sharing of electronsIonic BondHydrogen BondCovalent Bondvan der Waals
- 17. Multiple ChoiceA charged atoms (caused by gain or loss of electrons)Ionmoleculeelementcompound
- 18. Multiple ChoiceAttractions between molecules of the same substanceadhesioncohesionmixtureacid
- 19. Multiple ChoiceSubstances formed by a chemical reactionproductsreactantscoefficientssolution
- 20. Multiple ChoiceWho am I? I'm a polymer composed of amino acids that are linked by peptide bonds. Amino acid bonds determine my folds.LipidCarbohydrateProteinSugar
- Answer choicesTagsAnswer choicesTags