Answer:
4,5*6,02*10^23
Explanation:
The moles seem always complex topic but not in fact,
Consider that
1 mole of apple is 1 * 6,02*10^23
Same as 1 dozen of apple is 1 * 12
I just did this question a few weeks ago.
This is what I put and I got all the points
<span>You first mix salt and sand together in a jar and add water. You then mix it all together and let the salt fully dissolve in the water and let the sand settle and the bottom. You then filter the sand in a different cup. You filter it out with a paper filter and a filter. You put the paper in the filter to catch all the sand and have only the salt water. When you are done filtering it you put the salt water on a burner and let the water evaporate until you only have salt.</span>
The buoyancy of an object is dictated by its density. So let us calculate for density, where:density = mass / volume
Calculate the volume first of a solid cube:volume = (6 cm)^3 = 216 cm^3 = 216 mL
Therefore density is:density = 270 g / 216 mLdensity = 1.25 g / mL
Therefore this object will float in the layer in which the density is more than 1.25 g / mL.
Answer:
A vase on a table overcomes gravity because of the upwards force of the table against it, which is stronger than the force of gravity. If you were to move the vase off the table it would no longer have anything stopping gravity from breaking it.
Explanation: