Milk of magnesia has the chemical formula mg(oh)2. what is the mass of 3.2 moles of milk of magnesia? the molar mass of magnesium is 24.3 grams er mole. the olar of hydrogen is 1.0 grams per mole. the mass of oxygen is 16.0 grams per

186.56 grams

Explanation:

In order to calculate this first we have to calculate the molar mass of Mg(OH)2 and we do that by calculating how many molecules of each element we have and then adding them up.

Wo we have 2 molecules of oxygen, 2 molecules of Hydrogen and 1 of magnesium:

2(16)=32

2(1)=2

1(24.3)=24.3

There are 58.3 grams in a mol of milk of Magnesia so we just multiply that by 3.2 moles.

(58.3)(3.2)=186.56 grams in 3.2 moles of milk of magnesia.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).