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- 1. Multiple Choice
What chart should you reference to lookup information about elements?Elemental mapPeriodic Table of ElementsTable of atomsNone of the above - 2. Multiple ChoiceProtons and neutrons clump together to form the __________ of an atom.nucleuscentrosomeouter shellorbital
- 3. Multiple ChoiceThis subatomic particle of an atom has a POSITIVE charge.ElectronNeutronProtonBetatron
- 4. Multiple ChoiceThis subatomic particle of an atom has NO charge.ElectronProtonAtomNeutron
- 5. Multiple ChoiceThis subatomic particle of an atom has a NEGATIVE charge.ElectronProtonAtomNeutron
- 6. Multiple Choice______ is an ELEMENT since it is only made up of one type of atom.WaterAirGoldSalt
- 7. Multiple ChoiceA molecule is made up of ____ or more atoms.1234
- 8. Multiple Choice
"Total mass of the products formed in chemical reaction is exactly equal to the total mass of the reactants present in it." is a .....
Law of constant proportion
Law of multiple proportion
Law of conservation of mass
All the above
- 9. Multiple Choice
What is an element?
Two or more atoms joined together.
One of over 100 types of atoms
Two or more different elements joined together.
A particle with no charge found in the nucleus of an atom.
- 10. Multiple Choice
What is a compound?
Two different elements bonded together.
Two of the same elements bonded together.
A mixture of different substances.
Two substances stuck together with glue.
- 11. Multiple Choice
What two subatomic particles are found in the nucleus?
proton and electron
electron and neutron
neutron and proton
neutron and electron
- 12. Multiple Choice
What is an ion?
a charged atom
an atom with different neutrons
atoms with no protons
atoms with no electrons
- 13. Multiple ChoiceExplain the difference between an atom and a molecule.One molecule is made of one atom.One molecule is always made of different particles.One molecule is made of more than one atom.One molecule is made of more than two atoms.
- 14. Multiple Choice
Which of the following best describes isotopes?
Isotopes have different numbers of neutrons.
Isotopes have different numbers of protons.
Isotopes are atoms of the same element with the same mass.
Isotopes have different numbers of electrons.
- 15. Multiple ChoiceElements are made ofmany types of atomsthe periodic tableone type of atommolecules
- 16. Multiple ChoiceHow many hydrogen atoms are in a molecule of glucose/sugar (C6H12O6)?6121824
- 17. Multiple Choice
_____ is a material that cannot be broken down into anything simpler by chemical reactions.
molecule
nucleus
compound
element
- 18. Multiple Choice
Does this describe an atom, a molecule, or both?
particles held together by bonding
atoms
molecules
both
- 19. Multiple Choice
When you cool matter, what happens to the atoms and molecules?
they move faster
they move slower
they stop moving
they stay the same
- 20. Multiple ChoiceIn a solid, the molecules are -close togethermoving aroundmoving fast
- 21. Multiple ChoiceWhat are the building blocks of proteins?amino acidfatty acidnucleotidelipid
- 22. Multiple ChoiceWhat are the single sugars that are the building blocks of carbohydrates?monosaccharidesdisaccharidespolysaccharidesamino acid
- 23. Multiple ChoiceWhy are lipids insoluble in water?lipids are polarlipids are non-polarlipids have a negative chargelipids are building blocks of protiens
- 24. Multiple ChoiceWhich of the four major biological macromolecules can be easily identified by the nitrogen base and phosphate found in its structure?carbohydratelipidproteinnucleic acid
- 25. Multiple ChoiceThe element _______is found in all of the organic compounds.IronNitrogenCarbonOxygen
- 26. Multiple ChoiceWaxes, oils and fats are examples ofCarbohydratesLipidsProteinsNucleic Acids
- 27. Multiple ChoiceWhich of the following organic compounds is the main source of energy for living things?carbohydrateslipidsnucleic acidsproteins
- 28. Multiple ChoiceHydrocarbons are compounds that containCarbon and NitrogenCarbon and HydrogenCarbon, and OxygenCarbon, Oxygen, and Hydrogen
- 29. Multiple ChoiceWhich of the following compounds is an example of hydrocarbon?CO2C2H6C2H5OHCH3COOH
- 30. Multiple ChoiceWhich compound is inorganic?Glucose (C₆H₁₂O₆)Ethane (C₂H₆)Carbon Dioxide (CO₂)Stearic Acid (C₁₈H₃₆O₂)
- 31. Multiple ChoiceRadioactive materials have unstable...electronsprotonsnucleineutrons
- 32. Multiple ChoiceThe time it takes for 50% of the nuclei in a radioactive sample to decay to its stable isotope is called _____.the daughter productgeologic timethe half-lifethe half-time
- 33. Multiple ChoiceIf the half-life of a radioactive group of atoms is 100 years, then how old is the rock if there have been two half-lives?25 years200 years400 years800 years
- 34. Multiple ChoiceWhat word describes when water is attracted to other substances?cohesionadhesioncapillary actionsurface tension
- 35. Multiple ChoiceWater makes up approximately 60% of the human body and plays a vital role in regulating body temperature. Which property of water makes it good at regulating temperature?Water is a good solvent.Water exhibits strong cohesion.. Water has an unusual crystalline structure.Water has a high capacity for heat.
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