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- 1. Multiple Choice
An ______________ is the basic particle from which all elements are made.chemical bondatommolecule - 2. Multiple ChoiceElements are represented by 1 or 2 letter symbols.
True or False.TrueFalse - 3. Multiple ChoiceA _________________ is a substance made of 2 or more elements that are chemically combined in a set ratio.compoundelementatomchemical bond
- 4. Multiple ChoiceA _____________________ is made of 2 or more substances that are together in the same place, but their atoms are not chemically bonded.chemical bondmixturemoleculeatom
- 5. Multiple ChoiceA ______________ mixture is when you can usually see the different parts and the can easily be separated.heterogeneoushomogeneous
- 6. Multiple ChoiceA _______________ mixture is when the parts of the mixture are evenly mixed and you can't see the different parts.heterogenous mixturehomogeneous mixture
- 7. Multiple ChoiceAn ______________ is a substance that cannot be broken down.elementmoleculechemical bond
- 8. Multiple ChoiceThis law states that energy cannot be created or destroyed, but it can change form.Endothermic reactionLaw of Conservation of Energy
LOCOEExothermic reactionLaw of Conservation of Matter
LOCOM - 9. Multiple ChoiceAn element is made up of only one kind of _____.isotopeplasticatommetal
- 10. Multiple ChoiceWhat is the left part of a chemical equation called?
H2 + O → H2OReactantsProductsYieldsChemical Equation - 11. Multiple ChoiceAn ice cube is put into a heated pan. What will most likely happen to the molecules in the ice as the ice is heatedThe molecules will begin to move slower.The molecules will begin to move fasterThe molecules will begin to increase in densityThe molecules will begin to condense in the air.
- 12. Multiple ChoiceWhich among the following is an element?brassbronzesilverstainless steel
- 13. Multiple ChoicePhysical or chemical change?
A solid is crushed into a powder?physical changechemical change - 14. Multiple ChoiceWhich of the following are pure substances?elementscolloidsheterogeneous mixturesolutions
- 15. Multiple ChoiceThe symbol of gold is _____GoAuGdA
- 16. Multiple ChoiceDefine a Chemical PropertyA property which depends on the objects size or matter.A property of matter not involving in its manifestation a chemical changeA property or behavior of a substance which undergoes a chemical change or reaction.A property which makes the object smell or taste different.
- 17. Multiple ChoiceHow is a gas defined?Indefinite shape, indefinite volumeDefinite shape, definite volumeFound in starsDefinite volume, indefinite shape
- 18. Multiple ChoiceHow is a solid defined?Indefinite shape and indefinite volumeDefinite shape and definite volumeFound in the starsDefinite volume, indefinite shape
- 19. Multiple ChoiceDefine a liquid.Indefinite shape, indefinite volumeDefinite shape, definite volumeFound in starsDefinite volume, indefinite shape
- 20. Multiple ChoiceAt higher temperaturesparticles in an object have less energyparticles in an object move fastera gas contracts
- Answer choicesTagsAnswer choicesTags