Which event is an example of an exothermic reaction?(1 point) A. Combustion
B. Evaporation
C. Decomposition
D. Melting ice

What is a property of a double replacement reaction

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.

Which of the following is a pure substance? airbloodcopperwood