Answer:A- It is important to keep the developing chamber covered with plastic wrap during the development of the chromatogram so the solvent vapor can saturate the air in the chamber, the solvent does not evaporate and the chromatogram develops properly and shows the correct cations present.
Salutations!
A kind of sedimentary rock formed from plant material over a long period of time is __________.
<span>A kind of sedimentary rock formed from plant material over a long period of time is coal. Coal is a fossil fuel as well.
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Answer:
83.6 g
Explanation:
The limiting reactant is carbon and oxygen is in excess.
C + O₂ ⟶ CO₂
Data:
Mass of C = 22.8 g
Mass of O₂ = 78.0 g
Mass of unreacted O₂ = 17.2 g
Calculations:
Mass of O₂ reacted = 78.0 g - 17.2 g = 60.8 g
Mass of reactants (C + O₂) = 22.8 g + 60.8 g = 83.6 g
According to the Law of Conservation of Mass, the mass of the product (CO₂) equals the sum of the masses of the reactants.
The mass of CO₂ is 83.6 g.
Answer:
Hi, There!
<em>Drinking energy drinks make people more hyper. What is the independent variable and the dependent variable?</em>
<em>The independent Vairable is the people drinking the energy drinks.</em>
<em>The Dependent variable is is the result which makes people more hyper</em>
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