Explain why it is important that there be no gaps around the edges of the filter paper

during a vacuum filtration.

Oxygen, nitrogen, and fluorine bond with hydrogen to form molecules. these molecules are attracted to each other by

How much water is present in 83.0 g of Li3PO4 * 12H2O?

For which gases does the ratio of PV to RT equal a constant? A. gases of very low temperature B. real gases C. gases at very high pressure D. ideal gases

Which process was responsible for producing gases in the early atmosphere?

Which of these is NOT a function of the skin? to protect the body against outside invaders to keep the body at a constant temperature to release chemicals that control blood sugar to allow the body to feel when something is touching it

What is the standard cell potential (E°cell) for the voltaic cell based on the reaction below? Sn2 + (aq) + 2Fe3 + (aq) → 2Fe2 + (aq) + Sn4 + (aq)

G oil of wintergreen, c8h8o3 is prepared when methanol, ch3oh, is reacted with salicylic acid, c7h6o3. what is the percent yield of a reaction in which 15.3 g of oil of wintergreen is collected after 16.

How can a neutral atom become a positively-charged particle?

Mineral oil can be used in place of mercury in manometers when small pressure changes are to be measured. What is the pressure of an oxygen sample in mm of mineral oil if its pressure is 28.5 mm Hg? (d of mineral oil = 0.88 g/mL; d of Hg = 13.

To identify an unfamiliar organism, you could use a field guide and an