Look at the model shown. Explain how the changes modeled are either chemical changes or
physical changes. Provide information, patterns,
or characteristics can you cite as evidence to
support your answer.

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will