How many grams of CaCl2 are in 0.75 liter of a 0.5M solution of the CaCl2?

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

What term is applied to a scientist who studies ancient life, including animal and plant fossils a. anthropologist b. dendroclimatologist c. geophysicist d. paleontologist

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.