Answer:
Na2S
Explanation:
Na2S: Na (always +1). S (-2) in this formula
CaSO4: Ca (always +2). O (-2). => S (+6) in CaSO4
S (0)
SO2: O(-2) => S (+4)
Hope this answer will help you! Have a nice day!
25:18 meaning for every 25 moles of oxygen there's 18 moles of water
The solution is the mixture of the solute into the solvent particles. In 60 mL solution, 59.8 mL of solvent is added.
<h3>What are solute and solvent?</h3>
Solute and solvent are the components of a solution. They react and mix together to produce a homogenous mixture. The solute is a substance that is added to the solvent.
Solvents are substances that dissolve the added solute in them to make a homogenous solution.
Given,
Volume of Solute = 0.20 mL
Volume of Solution = 60 mL
The volume of solvent is calculated as:
Volume of solvent = Volume of solution - Volume of solute
= 60- 0.20
= 59.8 mL.
Therefore, 59.8 mL of solvent is present in 60 mL of solution.
Learn more about solute and solvent here:
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More molecules in the sawdust can collide with oxygen molecules
Answer:
1077.3 molecular in 1.05*1026 molecules
