Explanation:
here's the answer to your question
Molality = moles Pb(NO3)2/ Kg H2O
373.5 g Pb(NO3)2 X (1 mole/ 331.2 grams)= 1.13 moles Pb(NO3)2
2.00 x 10^3 g (1 Kg/ 1000g)= 2 Kg
Molality= 1.13 moles/ 2 Kg= 0.565 molal.
The statement that correctly explains the molecular structure of water is A. One oxygen (O) and two hydrogen atoms (H2) are joined by a covalent bond.
It cannot be ionic, since ionic bonds tend to be sold at room temperature.
No, pure cocoa powder is not very soluble. A hot cocoa mix will dissolve well under warm temperatures.
2 in front of H2. Technically nothing in front of O2 otherwise put a 1 then a 2 in front of H2O
2H20 + 1O2 —— > 2H2O