How might water have two different densities

The blank of a substance is the amount of that substance that can dissolve in a certain amount of a given solvent

If a wire with a current, which is continually reversing directions, is placed between the poles of a magnet, what will happen to the force on the wire

The attraction between covalent molecules is less than the attraction between ionic substances. Because of this many covalent compounds are liquids or gases and many of them have a distinctive odor. An example would be gasoline.

If you wanted to design an experiment to show that the solubility of sugar in tea varies according to the temperature, what variable would remain constant?

Which of the following is true about an atom of iron and an atom of copper? 1 They have different masses. 2 Both have the same properties. 3 They have an equal number of protons. 4 Both have different types of sub-atomic particles.

after balancing the redox equation FeCl3+Zn--->ZnCl2+Fe, what are the coefficients, in order from left to right?

Aluminum oxide, Al2O3, is used as a filler for paints and varnishes as well as in the manufacture of electrical insulators. Calculate the number of moles in 47.51 g of Al2O3.

What volume of 2.00 m must be added to 150.0 ml of 1.00 m chloroacetic acid to produce a buffer solution having a ph of 3.30?

Which microscope came out first

Which exerts greater pressure on the floor-standing flat-footed or standing on tiptoe? on tiptoe, because the force acts over less area on tiptoe, because the force acts over more area flat-footed, because the force acts over more area flat-footed,