What mass of koh is needed to make 300.0 ml of 0.725 m koh? what mass of koh is needed to make 300.0 ml of 0.725 m koh? 86.4 g 30.5 g 23.3 g 12.2 g?

What elemental trend exists as we move down a column on the periodic table? Chemical reactivity of metals increases Chemical reactivity of nonmetals increases Chemical reactivity of metals remains unchanged Chemical reactivity of nonmetals remains

Is a metalloid malleable or brittle

How many moles of mgs2o3 are in 195g of the compound?

Consider the following system at equilibrium:D (aq) + E (aq) F (aq) Classify each of the following actions by whether it causes a leftward shift, a rightward shift, or no shift in the direction of the net reaction.

What is the mass, in grams, of a pure iron cube that has a volume of 4.20 cm3?

What are the characteristics of Archaebacteria? A. they are single cells that have a nucleus and tend to live in extreme conditions. B. they are single cells that lack a nucleus and tend to live in extreme conditions. C.

Avogadro's number was calculated by determining the number of atoms in

A certain shade of blue has a frequency of 7.26 * 1014 Hz. What is the energy of exactly one photon of this light?

A 20.0 mL sample of a NaCl solution has a mass of 21.040 g. After the solution is evaporated to dryness, the dry salt residue has a mass of 4.348 g. Calculate the following concentrations for the NaCl solution.

What are the intermolecular forces present in Argon?