It's because they add to its hardness . Calcium is naturally dissolved in water
Answer:
pollination is the proces called
Answer:
point 2 and 4
Explanation:
because at those point temperature is constant
Answer:
14 electrons
Explanation:
The total number of electrons that can occupy the f sublevel is 14.
The d sublevel can have 10 electrons.
The p sublevel can have 6 electrons
The s sublevel can have 2 electrons.
Answer: melting points are major means of identifying pure compounds.
Explanation:
A pure compound can be identified by its melting point because, a pure compound will have a sharp melting point while an impure compound will melt over a temperature range. If presented with a pure sample of an unknown solid, its melting point can tell us what the identity of the compound. Similarly, melting point analysis can show the purity of a known solid. If the known solid has a sharp melting point, then it is pure.