If you are required to use 25.00 mL of 0.200 M NaOH for a titration reaction, how many moles of NaOH will you use?

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)

When the mercury level in a barometer decreases that atmospheric pressure has

Condensation happens when water vapor cools. true or false? ?