Answer:
See below!
Explanation:
Gases and liquids take the shape of the container.
A gas fills all available space.
A solid maintains its shape.
A liquid can be poured.
A gas is compressible.
A liquid and solid have fixed volumes.
Answer:
V = 27.1 cm³
Explanation:
To get the volume from the density we can plug our values into the formula for density, mass over volume, and then we use algebra to get V.
13.9 g/cm³ = 377 g / V
(13.9)(V) = 377
V = 27.1 cm³
Wegener's idea that pangaea drifted into a continents
The answer is a chlorine atom.
Explanation:
Explanation:
The problem basically wants you to find a way to convert between the number of atoms present in the sample and the number of moles they are equivalent to.
To convert between atoms and moles we use something called Avogadro's constant, which basically acts as the definition of a mole.
More specifically, in order to have one mole of an element you need 6.022⋅1023 atoms of that element. You can thus use this number as a conversion factor to take you from atoms to moles or vice versa.
In your case, you will have
