1 mole ------------- 6.02x10²³ atoms
4.93 moles ------- ??
4.93 x ( 6.02x10²³) / 1 =
=> 2.96x10²⁴ atoms
Answer: 4.1 g of barium precipitated.
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 
of particles.
To calculate the moles, we use the equation:
Given : moles of barium = 0.030
Molar mass of barium = 137 g/mol
x= 4.1 g
Thus there are 4.1 g of barium that precipitated.
They have different number of Neutrons and protons, so their masses are different
Hope this helps!
Answer:
Reliable knowledge is knowledge that has a high probablility of being true because its veracity has been justified by a reliable method. Reliable knowledge is sometimes called justified true belief, to distinguish reliable knowledge from belief that is false and unjustified or even true but unjustified.
False
Explanation:
A molecule containing two or more polar bonds in its entire structure is a polar molecule. What determines the polarity of bonds in molecules their net dipole moment.
- In elements combination, the electronegativity difference between two atoms determines polarity.
- In a bonded specie, polarity of a molecule is determined by the net dipole moment.
- The net dipole moment depends on the geometry of the molecule.
- If the geometry favors the formation of polar bonds, the molecule will be polar.
Learn more:
Polarity brainly.com/question/2615067
water molecule brainly.com/question/11878570
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