"A mixture has no fixed composition, whereas a compound has” Explain what this means, using hydrogen, oxygen, and water to illustrate your answer.

Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax