Answer: Yttruim: 39 protons, 50 neutrons, 39 electrons
Ruthenium: 44 protons, 57 neutrons, 44 electrons
Answer:
9moles of h20 hndi parin ako sure
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Answer:
mass = 100kg
Explanation:
Hello! In order to calculate the mass, we first have to calculate the volume of the tube.
For this, we have the area (A) and the length (L) of the tube.
V = A * L
A = 100cm2 * (1m2 / 10000cm2) = 0.02m2
L = 5m
V = 0.02m2 * 5m = 0.1m2
Then we can calculate the area from the density.
Density = mass / volume
mass = density * volume = 1000 (kg / m3) * 0.1m3
mass = 100kg
Answer:
leaving a copper penny in vinegar until it turns green
putting an iron nail outside for a month and observing changes