What movement causes a year and how long is it

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

Why is permeable soil best for plants that need a lot of drainage?

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.