Answer:
metaltoids like mercury can become solid and liquid and are called semiconductors
Answer:
those small sediments begin to precipitate, condense on the ground and finally settle.
Explanation:
Sedimentation is a natural process, which occurs spontaneously in nature and promotes the formation of sedimentary rocks.
Answer:
1.45 moles of Na2O produced
Explanation:
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To determine the volume of chlorine gas that is needed, we need to first know the reaction. It is expressed as follows:
2Na + Cl2 = 2NaCl
Then, from the amount of NaCl to be produced, we calculate the moles of Cl2 needed.
14.2 g NaCl ( 1 mol / 58.44 g ) ( 1 mol Cl2 / 2 NaCl ) = 0.1215 mol Cl2
To determine the volume of the gas, we need an equation that would relate the number of moles to volume. There are a number of equation available but some are complex equations so we assume that it is an ideal gas. We use the equation:
PV = nRT
V = nRT / P
V = 0.1215 mol ( 0.08205 L-atm / mol-K ) (45.3 +273.15 K) / 1.72 atm
V = 1.85 L Cl2 gas
