Questions in Grade High-school

Questions in Grade High-school

[Homework Help] Which of the following statements is true of the critical temperature of a pure substance? A. The critical temperature is the temperature above which the liquid phase of a pure substance can exist. B. The critical temperature is the temperature above which the liquid phase of a pure substance cannot exist. C. The critical temperature is the temperature below which the liquid phase of a pure substance cannot exist. D. The critical temperature is the temperature at which all three phases can coexist. E. The critical temperature is the temperature at which the pure substance reaches, but cannot go beyond, the critical pressure.

[Homework Help] The lengths of the legs of a right triangle are 25 cm and 60 cm. What is the length of the hypotenuse? A. 42.5 centimeters B. 65 centimeters C. 9.2 centimeters D. 35 centimeters

[Homework Help] Criticize or defend each of the U.S. actions surrounding World War II listed below: - U.S. aid to China - Lend-Lease Act

[Homework Help] Salt water is classified as a 1. compound because the proportion of its atoms is fixed 2. compound because the proportion of its atoms can vary 3. mixture because the proportion of its components is fixed 4. mixture because the proportion of its components can vary

[Homework Help] How did the Great Depression weaken Western democracies?

[Homework Help] The formation of the Canary Islands was primarily caused by their location near a: 1. subduction zone 2. mantle hot spot 3. divergent boundary 4. transform fault

[Homework Help] When an atom of the unstable isotope Na-24 decays, it becomes an atom of Mg-24 because the Na-24 atom spontaneously releases: 1. an alpha particle 2. a beta particle 3. a neutron 4. a positron

[Homework Help] A group hiking in the Catskill region of New York State finds several large boulders composed of metamorphic rock. These boulders most likely resulted from the weathering of bedrock formed in the: 1. Catskills, and were transported to their present location by mass movement 2. Catskills, and were transported to their present location by glaciers 3. Adirondack Mountains, and were transported to their present location by mass movement 4. Adirondack Mountains, and were transported to their present location by glaciers

[Homework Help] determine whether the function y=0.8(2/3)^x represents exponential growth or decay.

[Homework Help] What type of biome is located near the equator? Why?