You can use the mole ratios given by the coefficients in the balanced chemical equation. The coefficients are the smallest whole-number number of moles.
<span>Aluminum hydroxide is insoluble in water, while calcium sulfate is only marginally soluble. </span>
<span>Al2(SO4)3(aq) + 3Ca(OH)2(aq) --> 2Al(OH)3(s) + 3CaSO4(s) </span>
<span>1 mol ................. 3 moles ............... 2 moles ......... 3 moles </span>
<span>0.725 mol </span>
<span>0.725 mol ......... 3(0.725) mol ........ 2(0.725) mol ..3(0.725) mol </span>
<span>Al2(SO4)3(aq) + 3Ca(OH)2(aq) --> 2Al(OH)3(s) + 3CaSO4(s) </span>
<span>1 mol ................. 3 moles ............... 2 moles ......... 3 moles </span>
<span>........ .................. 0.774 mol </span>
<span>0.774 / 3 mol ..... 0.774 mol .......... 2/3(0.774)mol.. 0.774 mol</span>
B. the shape of a molecule determines its properties and interactions
The equilibrium constant for a reaction is simply the
product of the solubility constant of the solute and the formation constant of
the product, that is:
Keq = Ksp * Kf
Keq = 1.8 × 10^−10 * 1.0 × 10^21
<span>Keq = 1.8 x 10^11</span>
Answer:
Column A Column B
1. CaS Calcium Sulfide
2. CaSO₄ Calcium sulfate
3. CaSO₃ Calcium sulfite
Explanation:
1) Calcium sulfide is a compound formed between calcium, Ca, and sulfur, S, with a chemical formula of CaS. It forms cubic crystals similar to rock salt, and smells like rotten eggs
2) Calcium sulfate is a chemical compound consisting of calcium, Ca, and sulfate SO₄. It is found in nature in the hydrated form as the mineral gypsum
3)Calcium sulfite is a chemical compound formed between calcium, Ca and sulfite, SO₃ used to treat water and preserve food.