How many moles is 145 liters of hydrogen gas at STP?

As element of group 1 on the periodic table are considered in order of increasing atomic radius, the ionization energy of each successive element generally, A. Decreases B. Remains the same C. Increases

A 1.63-g sample of a metal chloride, MCI 2, is dissolved in water and treated with excess aqueous silver nitrate. The silver chloride that formed weighed 3.48 g. Calculate the molar mass of M. a. 72.4 g/mol b. 67 g/mol c. 64 g/mol d. 32 g/mol e. 70.

How many moles of MgS2O3 are in 223 g of the compound

This is how krypton appears in the periodic table. Rounded to the nearest whole number, how many protons are in an atom of krypton? 36 48 84 120

When the hydronium ion concentration equals 10 moles per liter, what is the ph of the solution? is the solution acidic or basic?

The molecular formula HOH is an example of an

Which choice is an example of an endothermic process? . conversion of steam to ice . conversion of steam to water . conversion of water to ice . conversion of ice to steam

Cobalt chloride hexahydrate has a formula weight of 237.9 g/mol. how much would you use to make 0.5 liter of a 0.3 m solution?

Describe what happens when you take a antacid

According to Table F, which compound is soluble in water? (1) barium phosphate (3) silver iodide (2) calcium sulfate (4) sodium perchlorate