Viscosity will be your answer
Soda lime is a mixture primarily consisting of calcium hydroxide which is used to remove carbon dioxide gas ( CO2) from the surrounding medium.
The reaction of calcium hydroxide with carbon dioxide produces a white insoluble precipitate of calcium carbonate.
The chemical equation for the reaction is given below.
From the above equation we can see that the mole ratio of Ca(OH)₂ and CaCO₃ is 1:1 . This can be used as a conversion factor to find moles of CaCO₃ formed during the reaction
![2mol[Ca(OH)2] * \frac{1mol[CaCO3]}{1mol[Ca(OH)2]} = 2 mol [CaCO3]](https://tex.z-dn.net/?f=%202mol%5BCa%28OH%292%5D%20%2A%20%5Cfrac%7B1mol%5BCaCO3%5D%7D%7B1mol%5BCa%28OH%292%5D%7D%20%3D%202%20mol%20%5BCaCO3%5D%20)
Using molar mass of CaCO3 ( MW = 100.1 g/mol) we can convert moles of CaCO3 to grams.
![2mol[CaCO3] * \frac{100.1g[CaCO3]}{1mol[CaCO3]} = 200.2g[CaCO3]](https://tex.z-dn.net/?f=%202mol%5BCaCO3%5D%20%2A%20%5Cfrac%7B100.1g%5BCaCO3%5D%7D%7B1mol%5BCaCO3%5D%7D%20%3D%20200.2g%5BCaCO3%5D%20)
200.2 grams of the precipitate will be produced.
The answer is D, Magnesium.
For an anion or cation(negatively or positively charged ion) to replace a similarly-charged ion, it needs to be more active. This means that only a cation that is above Zinc on the reactivity scale can replace Zinc.
Since Aluminum was displaced in the reaction, that means the unknown metal is more reactive.
This means that our options are:
Lithium, Potassium, Calcium, Sodium, and Magnesium.
But because the metal did not displace the Sodium, it must be less reactive than it.
This gives us a new list of metals that are less-reactive than Sodium:
Magnesium, Aluminum, Zinc, Iron, Nickel, etc.
The only metal on both lists is Magnesium, and that means that your answer is D, Magnesium.
Answer:
3.2M HCl Solution
Explanation:
Molarity = moles of solute / volume of solution expressed in liters
moles of solute = 0.80 moles HCl
volume of solution = 250 ml = 0.250 Liter
Molarity (M) = 0.80 moles HCl / 0.250 Liters = 3.2M HCl Solution
The specific gravity of water is 1.0 True
