Answer:
FALSE
Explanation:
Energy is inversely proportional to wavelength.
∴ Waves with longer wavelengths have less energy than waves with shorter wavelengths.
C sea water
l k. ,,.....................
Answer:
6.022 × 10²² atoms
Explanation:
Generally 1 mol of any element contains 6.02×10^23 atoms. The number 6.022 × 10²³ is known as Avogadro's number.
Mass of Aluminium = 2.70g
Molar mass = 27g/mol
Number of moles = Mass / Molar mass = 2.70 / 27 = 0.1 mol
1 mol = 6.022 × 10²³
0.1 mol = x
x = 6.022 × 10²³ * 0.1 = 6.022 × 10²² atoms
Answer:
causes a substance to change from a liquid to a solid.
Explanation:
Solids are things like wood, salt, your face, shoes. they all keep their shapes. they can be compacted if you squish them. they have a defined shape and volume.