Is a rusting bicycle a chemical change?

What are transitions between a liquid and gas called? identify which way they are transitioning

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n