On what basis do we distinguish between substances and separate them from one another?

Magma that flows onto earths surface is called

Which health condition is an infectious disease

The atomic masses for elements are the same as the atomic number. relative masses determined by comparison with a standard reference. unknown. actual masses determined by weighing individual atoms.

What do Ta Os and Rh stand for on the periodic table? Transition Metals

What is the independent variable of the sentence "if diet affects weight, then people who eat less will lose weight."?

Compare and contrast each of the following terms. mass and matter

The rate constant of a reaction is 4.7*10-3 s-1 at 25°C, and the activation energy is 33.6 kJ/mol. What is k at 75°C?

What are the pros of using steel?

Cation a has a + 3 charge and is small. cation b has a + 1 charge and is large. which is more likely to occupy negatively charged sites on a clay mineral given equal concentrations in solution? cation a cation b they are the same

Show your work, including units, for the following series of calculations: a. How many moles of Al are in 1.25 g of Al? b.