A solid has a volume of 64 cm3. Its mass is 288 g. What is its density?

What is the energy required to excite one na atom (wavelength = 589 nm) ? to excite one mole of na atom?

I 1 mL o a 0.02% w/v isoproterenol hydrochloride solution is diluted to 10 mL with sodium chloride injection be ore intravenous administration, calculate the percent concentration o the diluted solution

What is the pOH of a 3.32 x 10^-5 M KOH solution

Is/are determined by a genetic trait passed on from parents to their children

The knowledge of chemistry not important in one of the following? A, in agriculture B, in Geology C, in medicine D, none

What is the nature of the Ca-Cl bond in a molecule of calcium chloride (CaCl2) if the electronegativity value of calcium is 1.0 and that of chlorine is 3.167 O A nonpolar covalent B. moderately polar covalent C.

Which statement is true about oxidation and reduction in an electrochemical cell? (1) Both occur at the anode. (2) Both occur at the cathode. (3) Oxidation occurs at the anode and reduction occurs at the cathode.

For a solar eclipse to occur,

How many times does the citric acid cycle occur for each molecule of glucose?

Which planet is made of mostly gas