Answer:
The salt is barium chloride.
Explanation:
Moles of barium sulfate =
According to reaction, 1 mol of barium sulfate is produced from 1 mol of .
Then 0.0480 moles will be produced from:
of
.
Mass of used = 10.00 g
Moles of =\frac{10.00 g}{\text{Molar mass}}[/tex]
Molar mass of = 208.33 g/mol
The nearest answer to our answer is .
The correct answer barium chloride with molar mass of 208.2 g/mol.
Answer: B. trigonal planar
Explanation:
Valence Shell Electron Pair Repulsion Theory (VSEPR) is a model to predict the geometry of the atoms making up a molecule where atoms are arranged such that the forces of repulsion are minimum.
If a central atom is bound to three electron domains ,the number of electron pairs is 3, that means the hybridization will be and the electronic geometry of the molecule will be trigonal planar as the electron pairs will repel each other and attain a position which is most stable.
Example: with 3 electron domains has trigonal planar geometry.
The car's velocity after 5s : 10 m/s
<h3>Further explanation</h3>Given
velocity=v=72 km/h=20 m/s
time=t = 5 s
acceleration=a = -2 m/s²
Required
velocity after 5s
Solution
Straight motion changes with constant acceleration
vf=final velocity
vi = initial velocity
Input the value :
The car is decelerating (acceleration is negative) so that its speed decreases