Determine the mole fraction of the solute if you have 3.4 grams KCl in 8.1 grams H2O

A) 0.092

B) 0.420

C) 0.101

D) 0.63

Which of the following is ranked from smallest to largest? water, carbon, electron, glucose, glycogen

Blood travels through from your legs to your heart through

Molarity of a salt water solution of "0.47" moles of NaCl dissolved in a volume of 0.25L

2 OF2 + 2 S → SO2 + SF4 + 319.5 kJ Is this endothermic or exothermic? Draw the energy pathway

What is convection? A. the transfer of heat energy that doesn't involve matter B. the transfer of heat energy from solids to liquids and gases C. the transfer of heat energy between objects that are touching D.

What is the Mass in grams of 3.1 mol of mercury

A helium balloon contains 0.48 g of helium. Given the molecular weight of helium is 4.0g/mol, how many moles of helium does it contain?

Three differences between a science and a pseudoscience

Why is it illegal to manufacture fireworks without a license

Be sure to answer all parts. Enter your answers in scientific notation. The following values are the only allowable energy levels of a hypothetical one-electron atom: E6 = - 2.0*10-19 J E5 = - 7.0*10-19 J E4 = - 11.0*10-19 J E3 = - 15.