How many significant figures are in 54,060,000

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

Why are the trends and exceptions to the trends in ionization energy observed?

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.