Answer:
d
Explanation:educated guess
Answer:
[C]
Explanation: -Cause i took the test on engenuity
Corrosion of aluminium metal is a chemical process. Corrosion happens when a certain chemical reaction takes place.
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:
Species A and C are related to humans.
Explanation:
got it right on edge.