hi <3
a mixture is a group of compounds that aren't chemically combined
thus, it would be picture III and IV.
hope this helps :)
Answer:
2100 kPa
Explanation:
The temperature is constant, so the only variables are pressure and volume.
We can use Boyle’s Law.
p₁V₁ = p₂V₂ Divide both sides of the equation by V₂
p₂ = p₁ × V₁/V₂
p₁ = 485 kPa; V₁ = 648 mL
p₂ = ?; V₂ = 0.15 L = 150 mL Calculate p₂
p₂ = 485 × 648/150
p₂ = 2100 kPa
Answer:
1)Filtration to remove sand
2)Evaporation to obtain sugar
Explanation:
Add water to the mixture and mix,sugar will dissolve.
Filter out the sand.
Evaporate the remaining solution to obtain the sugar.
...with the discovery and identification of the electron; and with the discovery of the first subatomic particle.
C'mon man, this is on the wiki page for J.J. Thomson, first paragraph.
C. Yes, if each sample contains 6.02 x 10²³ atoms.
