Which of the following statements is not true about alpha particles? a. essentially the same as a helium nucleus b. from an external source of exposure, it is less harmful than beta particle c. it is smaller than beta particle d. its velocity is less than that of a gamma ray

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

Calculate: select the worksheet tab. this tab you calculate the analyte concentration.  fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.)  record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes.  record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed