Explanation:
Make an observation
ask a question
form a hyposisese
make a prediction
test the prediction
use the results to fix the prediction and hypotheses
Answer:
3.01×10²³ atoms of calcium
Explanation:
number of moles = number of atoms/Avogadro's constant
n = N/NA
N = n×NA = 0.500 mol×6.02×10²³ mol^-1
N = 3.01×10²³ atoms of calcium
Smaller atoms and stronger bonds promotes greater hardness in minerals.