HELPPP 1. How much energy is released when 500 g of 373 K vapor condenses into liquid water?

2. How many joules of energy are needed to melt 500 g of water to its freezing point?

3. If 5,100 joules of heat are released when a freezing sample is frozen, what is the mass of the water?

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

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

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness