Answer:
i will do a joke... hmmm...
Explanation:
why did the nurse need a red pen?
To draw out blood. lol
False, atoms can not be created that way
Answer:
270g
Explanation:
Given parameters:
Concentration of solution = 1.5M
Volume of solution = 4.5L
Unknown:
Mass of NaOH added = ?
Solution:
Concentration is the number of moles of solute found in a solution.
To solve this problem, we need to find the number of moles of NaOH first;
Number of moles = concentration x volume
Number of moles = 1.5 x 4.5 = 6.75moles
Now, to find the mass of NaOH;
Mass of NaOH = number of moles x molar mass
Molar mass of NaOH = 23 + 16 + 1 = 40g
Mass of NaOH = 6.75 x 40 = 270g
Answer:
toluene has higher boiling point than benzene
Explanation:
Comparing toluene and benzene , the molecular mass of toluene is more than benzene , because of more number of atoms , therefore , the intermolecular forces will be more ,
And since toluene has more intermolecular forces , so more amount of energy is required to convert the the liquid toluene to gaseous .
Hence ,
Toluene will have higher boiling point than benzene .
Answer:
So CO2 = 4 + 6(2) = 16. So, total valence electrons are 16. Carbon is the least electronegative that means it stays at the center. So, put the Carbon in the middle and then set the oxygen either side of that!
Explanation: