You need 4 H2 molecules and 2 O2 molecules.
This is because water is H2O which is 2 Hydrogen and 1 Oxygen so if you want to make 4 water molecules, you’ll need 8 hydrogen and 4 oxygen.
Given H2 you need 4 because 4•2 is 8 and for O2 you need 2 because 2•2 is 4.
I hope this makes sense.
When you blow dry your hair you will get a physical change
Answer:
they could collide 241.66 molec / in² by increasing the volume to 40.2L
Explanation:
ideal gas:
<u>Boyle Law</u>: at constant temperature the pressure of a gas varies inversely with the volume
- V1 * P1 = V2 * P2
- P = F / A
∴ V1 = 6.70 L;
∴ P1 = 1450 molec / in²
∴ V2 = 40.2 L
⇒ P2 = (( 6.70 L ) * ( 1450 molec/in²)) / 40.2 L
⇒ P2 = 241.66 molec/in²
If we have in mind the following procedure:
BACo3(s) + H +1 -> Ba +2 + HCO3 -1
CO3 - 2 + H+1 -> HCO3 -1
As nitric acid is added then {CO3 -2 } decreases meaning that more BaCo3 can dissolve. The graph you need to use is the one that the curve goes down and closer to solubility and goes up on conc.
