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Compounds, Elements, and Atoms TEST - Questionário
Contribuição de: Welser
  • 1. Protons have a _______________ charge.
A) neutral
B) negative
C) positive
  • 2. Which element on the Periodic Table of Elements is 'out of place' or appears to not be with other elements that share similar properties?
A) Carbon
B) Hydrogen
C) Aluminum
D) Gold
  • 3. Melting is an example (changing state or form)
A) chemical property
B) physical change
C) chemical change
D) physical property
  • 4. The ability to burn is an example
A) chemical property
B) chemical change
C) physical property
D) physical change
  • 5. Rusting iron is an example
A) physical change
B) chemical change
C) chemical property
D) physical property
  • 6. When a substance goes from a liquid to a gas, this is happening...
A) rusting
B) burning
C) evaporating
D) solidifying
  • 7. The __________ is an example of a chemical change.
A) burning of paper
B) freezing of water
C) melting of chocolate
D) salting of food
  • 8. Which of the following is an example of a chemical change?
A) evaporating
B) sublimination
C) burning
D) melting
  • 9. Which of these indicates that a chemical change has taken place?
A) change from a liquid to a gas
B) release of heat energy
C) change in shape
D) dissolving of a solid
  • 10. The process of a liquid changing into a gas is called __________.
A) sublimination
B) condensation
C) deposition
D) vaporization
  • 11. The process of a gas changing to a liquid is called ___________.
A) condensation
B) sublimination
C) vaporization
D) deposition
  • 12. What is all matter made up of?
A) atoms
B) metal
C) carbon
D) cells
  • 13. Which of these is not part of an atom?
A) element
B) neutron
C) proton
D) electron
  • 14. Food spoiling or milk souring are examples of...
A) physical property
B) chemical property
C) physical change
D) chemical change
  • 15. When a piece of paper is crumbled, this is a change of
A) state
B) density
C) shape
D) form
  • 16. Which statement is true about elements?
A) There are only five known elements.
B) Elements are made from mixtures of molecules.
C) All elements are metallic.
D) Each element contains only one kind of atom.
  • 17. Angie has a substance that is made up of only one type of atom. What is her substance called?
A) matter with no mass
B) an element
C) a compound
D) an alloy
  • 18. What is NOT a possible sign of a chemical change?
A) color change
B) a change of state
C) light given off
D) heat given off
  • 19. True or false. Atoms have a nucleus.
A) False
B) True
  • 20. Leaves changing color is an example
A) chemical property
B) chemical change
C) physical change
D) physical property
  • 21. A chemical change ____________.
A) cannot be reversed easily
B) always can be reversed
C) never can be reversed
D) never will change state
  • 22. True or false. Inside the nucleus are protons and electrons.
A) True
B) False
  • 23. True or false. The electrons race around outside of the nucleus.
A) False
B) True
  • 24. Electrons have a _______________ charge.
A) neutral
B) positive
C) negative
  • 25. Elements that are in the same column on the periodic table are said to be in the same _____________________.
A) team
B) row
C) family
D) metal
  • 26. Neutrons have a _______________ charge.
A) positive
B) neutral
C) negative
  • 27. Hydrogen (H) is an example of __________________.
A) an element
B) a compound
C) a proton
D) a mixture
  • 28. Oxygen (O) is an example of _______________.
A) a compound
B) an element
C) a proton
D) a mixture
  • 29. Water (H2O) is an example of ___________________.
A) a compound
B) an atom
C) an element
D) a proton
  • 30. The Periodic Table of Elements can be divided into four main groups: Metals, Nonmetals, Metalloids, and _______________________.
A) liquids
B) elements
C) The Noble Gases
D) molecules
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