Hi!
The answer would be ~ 3.58
<h3>Explanation</h3>
You will need to use the simple formula of finding the number of moles, given the mass of the compound, which is:
number of moles of compound = mass of compound / Mr of compound
The mass in this equation is the mass of the compound you have/ are considering.
The Mr is the sum of the atomic masses of each element in the compound.
<u><em>To proceed with this, you need to have two of the following values:</em></u>
Mass : 340g
Mr of MgCl2 : 95
Number of moles : ?
<u><em>Substituting the respective values in the equation:</em></u>
number of moles = mass / Mr
number of moles = 340 / 95
number of moles = 3.58
Hope this helps!
Answer:
the fireball flamed dangerously when moving quickly
Explanation:
im prbly wrong idk
Answer:
active solar heating systems use solar energy to heat a fluid either liquid or air and then transfer the solar heat directly to the interior space or to a storage system for later use. If the solar system cannot provide adequate space heating, an auxiliary or back-up system provides the additional heat.
hope this helps : )
Answer:
p>Whether an object will float or sink is dependent on its density, and on the density of the liquid it is placed in. In the case of water, an object with a density less than 1 g/cm3 will float. The closer its density is to 1 g/cm3, the more of it will sit below the water level.
Answer:
The net force on the scooter is 95 N to the left.
Explanation:
Lizzie is pushing with 75 N of force to the left, so the force is a vector with 75N of magnitude and to the left.
Alex is helping with 20 N to the left, so the force is a vector with 20 N magnitude and to the left.
When we add vectors, vectors that point in the same direction add up and vectors that point in opposite directions are subtracted.
Hence, the net force is equal to:
F=75 N + 20 N=95 N
As both forces point to the left, the net force is also to the left.