Answer:
Index Fossils can be used to identify a specific time period.
Explanation:
Answer:
Explanation:
The dependent variable in this case is the valuable whose value is dependent on the other variables. In this context, the dependent variable is the rate of diffusion of the molecules...how fast or how slow which is depends on the size of the molecules.
The independent variable is the usually has a direct effect on the dependent variable which in this case is the size of the molecules...how small or big...will affect their rates of diffusion.
Answer:
It has 0.82 moles of gas
Explanation:
Given:
The Volume of gas = 30 L
The pressure of the gas = 0.7 atm
Temperature =315 K
To Find:
Number of moles of the gas = ?
Solution:
According to Ideal gas law
PV =nRT
where
P is the pressure
V is the volume
T is the temperature
n is the number of moles
R is the gas law constant
On substituting the given values in the formula, we get
(0.7) (30) = n (0.0817)(315)
21 = n (25.7355)
n = \frac{21}{25.7355}
n= 0.8159
n = 0.82(rounding off)
Answer:
an opening into a vessel or cavity of the body.
science can impact our lives with energy we use lots of it and yes I would choose a career in science because you can learn a lot from science like about the vaccines that are out etc basically this part is your opinion