<span>The correct answer is ideal gas law.
when the ideal gas law formula is:
PV = nRT ,
when P is the pressure.
V is the volume.
and R is the ideal gas constant.
T is the temperature.
and n is the number of moles.
So, this is the law which relates pressure, temperature, volume and number of moles . and this law state that 1 mole of an ideal gas will occupy a volume V = 22.4 L</span>
The answer is D, because gems are usually not mettallic
Answer: The property is called Luster
Explanation:
Luster is a term used to describe the appearance of light from the surface of the mineral when it reflects light. The two types of classification of Luster is Mettalic or Non Mettalic.
some examples of minerals with mettalic lustre are --- Galena, graphite, Gold, Silver, Copper etc
Some examples of minerals with non mettalic lustre are--- Barite, Serpentine, Fluorite etc.
Answer:
The answer to your question is the original dose of Ba-142 was 1184 μg
Explanation:
Data
Total time = 1.25 hours
The Final amount of Ba = 9.25 μg
The Half-life of Ba = 10.6 minutes
Process
1.- Convert total time to minutes
1 h ----------------- 60 min
1.25 h ------------ x
x = 75 min
2.- Draw a table of this process
Final amount of Ba Time
9.25 75 min
18.5 64.4 min
37 53.8 min
74 43.2 min
148 32.6 min
296 22 min
592 11.4 min
1184 0.8 min