Remember this formula: C1V1=C2V2
C1 being the initial concentration
V1 being the initial volume
C2 being the final concentration
V2 being the final concentration
In this case we just plug and chug:
C1=10 M
V1=what we're looking for
C2=1.50 M
V2=500 mL
10*V1=1.5*500
V1=750/10= 75 mL of 10 M sulfuric acid needed.
First get 400 mL DI water. Add 75 mL 10 M sulfuric acid. Then add enough DI water to get the final volume to 500 mL.
I’m not sure on the context of this question but could it be Non-reusable
The answer is remain the same.If the rock is cut, crushed, or heated, the length of the half life of the uranium would remain the same since these factors have no effect on half-life.Even though chemical changes were affected by temperature, the physical state, pressure, concentration, the chemical environment within the molecule, and any other changing factors, the half-life of a radioactive substance is independent of these influences.
Answer:
D. A coil of a toaster glowing when the toaster is switched on
Explanation: