An SI unit used to measure force, equal to less than one-quarter of a pound is called

If a material is made of molecules, doesn't it probably have covalent or ionic bonds? Explain.

Thermal pollution is caused when the temperature of lakes and rivers gets too high and fish start to die. Why do the fish begin to die?

Which contributes to the dissolution of sugar in water?

Researchers want to determine the best temperatures for storing batteries. Describe a possible experiment and list the variables to be controlled in the experiment. Be sure to identify the manipulated and the responding variables.

Explain why organic reactions occur at a slower rate than inorganic reactions. What do chemists use to speed these reactions up? Why doesn't this change the products of the reaction?

Sodium hypochlorite (Na xCl yO z) is the active ingredient in household bleach. A 250.0 g sample of sodium hypochlorite contains 77.2 g sodium, 119.1 g chlorine, and the remainder is oxygen. Calculate the empirical formula of sodium hypochlorite.

The tapeats sandstone in the grand canyon is an example of a clastic sedimentary rock. such clastic sedimentary rocks can be distinguished from biochemical sedimentary rocks by

An ice cube and a scoop of table salt are left outside on a warm, sunny day. Explain why the ice cube melts and the salt does not

Which atomic orbitals overlap to form the C-O bond of dimethyl ether, (CH3) 20? O c 2sp^3 + 2sp^3 OC 2sp^2 + 0 2p O c 2sp^2 + 0 25p^2 O C 2sp^3 + O 2sp?

For the reaction CO+2H2=CH3OH at 700 K, equilibrium concentrations are [H2]=0.072 M, [CO] = 0.020M, and [CH3OH] = 0.030 M. Calculate K