In order to calculate the heat gained by the water in the calorimeter, the mass of the water must be determined. It will be calculated from the volumes of HCl and NaOH and the density of water, 1.00 g/mL. You should approximate that the density of the NaOH and HCl mixture is equal to the density of water. For each trial, calculate the mass of water in the calorimeter. Report your values to 3 significant figures.

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.

One nanometer is equal to how many meters?

Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point