1. which of the following is a single replacement reaction? cao + h2o yields ca(oh)2 mg + 2hno3 yields mg(no3)2 + h2 naoh + hcl yields h2o + nacl ch4 + 2o2 yields co2 + 2h2o

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm