justsuz72p71a21
12.12.2020 •
Chemistry
Jorge has an unknown mineral. The mineral has a mass of 21 grams and has a volume of 3cm3. Calculate density and find his unknown material
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Ответ:
7g/cm³
Explanation:
Given parameters:
Mass of the mineral = 21g
Volume = 3cm³
Unknown:
Density of the mineral = ?
Solution:
Density of a substance is the mass per unit volume of the substance.
Density =
Now insert the given parameters and solve;
Density = = 7g/cm³
The mineral with a density of 7g/cm³ is Galena, an ore of lead.
Ответ:
The leaf would still have fourteen chromosomes.
Explanation:
Because think of it this way if a lily pad has eight chromosomes and I rip a piece off it will still stay the same because it is the cell build up.