What is the fourth largest element in the periodic table

If you combine solutions of metal cations with various anion solutions. Based on what you know about soubility rules for which of the following combinations do you expect to observe the formation of a precipitate? Select all that apply. a.

A 265-mL flask contains pure helium at a pressure of 751 torrs. A second flask with a volume of 465 mL contains pure argon at a pressure of 727 torrs.

54,000,000 nanometers equals 0.000000054 megameters.

How many oxygen atoms are present in 2.50 mol of oxygen molecules

10 gram of CaCO3 contains how many moles? a) 1 b) 0.01 c) 0.1 d) 0.001

Which statement about enzymes is true? They are large molecules that decrease the rate of reactions in the body. They are large molecules that increase the rate of biologicallyimportant reactions. They slow the rate of chemical reactions.

How many seconds are you in school every week?

A student decreases the temperature of a 417 cm³ balloon from 278 K to 231 K. Assuming constant pressure, what should the new volume of the balloon be? 376 cm³ 417 cm³ 462 cm³ 924 cm³

How are mixtures and solutions the alike

Consider the statement, In the following process, the number of particles increases, so ΔS for this process must be positive. MgS (s) ⇄ Mg2 + (aq) + S2 - (aq) Is this statement true?