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by BlastRoom
Distinguish changes in matter and explain how chemical reactions involve breaking and forming bonds.
#chemical_change#matatag_science_9
20 questions
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Which property can be observed without changing a substance's chemical identity?
Which observation describes a material's ability to undergo a chemical change?
Ana cuts a sheet of paper into strips. How should this event be classified?
An egg becomes firm as it fries. What kind of change occurs during cooking?
Why is recovering table salt from seawater by evaporation different from making a new substance?
Compare the molecules before and after the change shown. What changes?
Why does the exposed surface of a sliced banana gradually turn brown?
Which change occurs during enzyme digestion of starch but not during mechanical chewing alone?
Clear magnesium sulfate and sodium carbonate solutions are mixed. Which observation provides evidence that a different substance has formed?
Which explanation best accounts for foam produced by shaking a soap solution?
What term names the starting substances that take part in a reaction?
What happens to atoms during an ordinary chemical reaction?
Which connection between atoms appears in the final molecules but not in the starting molecules?
During the change shown, what happens within the starting molecules?
What holds the atoms together in elemental sodium?
Which description fits the way atoms are held together in Cl₂?
What type of attraction holds a NaCl crystal together?
Why can a sodium chloride solution carry an electric current?
Which property describes solid table salt, unlike elemental sodium?
Which pair of events both involve forming different substances?
Crack the passcode before the zombies get in.
Pick a tile, answer, hit bonuses and steals.
Term 3 Summative Review 1
40 questions
