Answer:
Unsaturated.
Explanation:
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In this case, since the solubility is useful to determine whether a solute will completely dissolve in a solvent or not, we must recall the solubility of potassium chloride at 50 °C that is 42.6 g per 100 g of water, it means that 42.6 g of KCl will completely dissolve in 100 g of water at such temperature. In such a way, since 14 g in the same mass of water is by far lower than the solubility at this temperature we can infer that the formed solution is unsaturated.
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Reaction on positive electrode (cathode):
PbSO₄₍s₎ + 2H₂O₍l₎ → 2e⁻ + PbO₂₍s₎ + 4H⁺₍aq₎ + SO₄²⁻₍aq₎.
s - solid.
l - liquid.
aq - dissolve in water.
PbSO4 is converted to Pb at one electrode (anode) and to PbO₂ at the other (cathode). Lead battery can be recharged, during recharging, an external source of energy is used.
Although ice is solid, as long as temperatures are above −20°C (−4°F) there is always a very thin layer of water on the surface that makes it slippery. Extra melted water from the rubbing between the blade and the ice vastly reduces the friction allowing the skater to glide across the ice with little effort.
6.009 x 10^3. You have to put 6009 into a decimal that is less than 10. Count backwards from 9 until you get to a single digit. You would move the decimal back three places making it 10^3