Is a flame test of an element a chemical or physical change?

What are the three conditions that exist where a real gas will not behave like an ideal gas

During radiation treatments for cancer, high energy rays are used to destroy or damage the cells which are multiplying rapidly and causing illness. What would the most serious risk of this treatment be?

Which type of particle is not present in the same amount as the other types of particles in a neutral atom

Type of relationship between hypnotist and a perticipant

N2 (g) + 3H2 (g) + 2NH3 (9) What will happen if pressure is increased?

C2H6 (g) + O2 (g) → CO2 (g) + H2O (g) (not balanced) Determine the number of liters of CO2 formed at STP when 240.0 grams of C2H6 is burned in excess oxygen gas?

What type of change is baking a cake? Why?

The van der Waals forces of attraction between molecules always become stronger as molecular size 1) decreases, and the distance between the molecules increases 2)) increases, and the distance between the molecules decreases 3) decreases, and the

Which civilization formed a confederation thay may have impacted the us government A. Powhatan B. Algonquian C. Iroquois D. Anasazi

Jasmine breathed against the window pane and noticed that her breath made a spot on it from the water vapor in her breath. Which stage of the water cycle does this show? A. precipitation B. evaporation C. condensation D. transpiration