Answer:
ideal gas law. PV=nRT
Explanation:
pressure x volume = #moles x R (constant of 8.31) x temp
Answer:
<em>Uses energy: Amoeba and clock both use energy</em>
<em>Contains cells: true for the amoeba.</em>
<em>Lacks genetic material: true for a clock.</em>
<em>Reproduces: True for amoeba</em>
<em>Has internal organization: True for amoeba and clock both</em>
<em> </em>
Amoeba can be described as a single-celled organism and hence is a living thing. It will show characteristics of a living thing. Whereas, a clock can be described as a device to watch time. It is a non- living thing.
Materials are transferred between individual cells and their internal environment through the cell membrane by diffusion, osmosis, and active transport. During diffusion and osmosis, molecules move from a higher concentration to a lower concentration. Osmosis: Osmosis is the movement of solvent particles across a semipermeable membrane from a dilute solution into a concentrated solution. Diffusion: Diffusion is the movement of particles from an area of higher concentration to lower concentration. This would be the diffusion.
Answer:
100ml of a stock 50% KNO3 solutions are needed to prepare 250ml of a 20% KNO3 solution.
Explanation:
In the given question it is mentioned that
S1=50%
V2=250ml
S2= 20%
We all know that
V1S1=V2S2
∴V1= V2×S2÷S1
∴V1= V2S2×1/S1
∴V1= 250×20÷50
∴V1= 100ml
