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A student observes actions that occurred in four different eggs. Which action describes ONLY a chemical change.
to the left of the arrow
F, Fe, He
a rotting egg
chemical change
the molecules spread farther apart and move faster
the condensation of water vapor on the outside of a cold can of soda
to the right of the arrow
triple beam balance
What happens to the molecules in a lump of butter as the butter melts?
to the left of the arrow
F, Fe, He
a rotting egg
chemical change
the molecules spread farther apart and move faster
the condensation of water vapor on the outside of a cold can of soda
to the right of the arrow
triple beam balance
When copper reacts with oxygen in the air, a color change takes place that turns the surface of the copper green. What type of change occurs to produce this color change?
to the left of the arrow
F, Fe, He
a rotting egg
chemical change
the molecules spread farther apart and move faster
the condensation of water vapor on the outside of a cold can of soda
to the right of the arrow
triple beam balance
Which of the following pieces of lab equipment should be used to measure mass in grams?
to the left of the arrow
F, Fe, He
a rotting egg
chemical change
the molecules spread farther apart and move faster
the condensation of water vapor on the outside of a cold can of soda
to the right of the arrow
triple beam balance
The reactants in a chemical equation are located _________________________.
to the left of the arrow
F, Fe, He
a rotting egg
chemical change
the molecules spread farther apart and move faster
the condensation of water vapor on the outside of a cold can of soda
to the right of the arrow
triple beam balance
Which is an example of a physical change?
to the left of the arrow
F, Fe, He
a rotting egg
chemical change
the molecules spread farther apart and move faster
the condensation of water vapor on the outside of a cold can of soda
to the right of the arrow
triple beam balance
The products in a chemical equation are located _____________.
to the left of the arrow
F, Fe, He
a rotting egg
chemical change
the molecules spread farther apart and move faster
the condensation of water vapor on the outside of a cold can of soda
to the right of the arrow
triple beam balance
Which group of substances below contains only single elements?
to the left of the arrow
F, Fe, He
a rotting egg
chemical change
the molecules spread farther apart and move faster
the condensation of water vapor on the outside of a cold can of soda
to the right of the arrow
triple beam balance
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