Its an inelastic collision because the force from the bat causes it to bounce back. It is also an elastic force because catching the ball call for the energy of the ball to be deformed and restored into the mitt.
Answer:
2Al+3CuCl2=>3Cu + 2AlCl3
NH4Cl catalyses the oxidation of Cu
False .... A neutral atom needs the same number of protons and electrons
One
molar mass NaCl
Na = 23
Cl =35.5
Molar mass = 58.6
mols = 450 / 58.5
mols = 7.69 mols
Concentration = mols / L
mols = 7.69
Volume = 4.5 kg = 4.5 L [1 liter weighs 1 kg]
C = 7.69 mol / 4.5 L
C = 1.71 mol/L
The question is unclear. I'm taking this to mean that you don't change the number of moles; you merely add 0.5 L to the volume.
Answer C = 7.69 / 5L = 1.54 mol / L
Two
I'm going to leave this. The wording just is not clear.
Three
More than you could grow in the entire planet earth for many centuries.
Ratio of sugar = 10 / (40 + 10 + 500) = 10 / 550 = 1:55 or 0.0182 to 1
Four
Guava Juice = (36 / 100 ) * 100% = 36%
Water = (64/100 ) * 100 = 64%
Answer:
235k
Explanation:
To solve this problem, we will use the general gas equation.
In its simplest form, the general gas equation can be represented as follows:
P1V1/T1 = P2V2/T2
P1 = 700mmHg
V1 = 760ml
T1 = 40 degrees Celsius = 40 + 273.15 = 313.15K ( conversion into standard temperature unit)
P2 = 1.25 atm
We have to covert this into the same unit as the first pressure.
760mmHg = 1atm
x mmHg = 1.25 atm
x = 1.25 * 760 = 950mmHg
V2 = 420ml
T2 = ?
Now, rearranging the equation will yield:
T2 = P2V2T1/P1V1
T2 = 950 * 420 * 313.5/700 * 760
T2 = 235.125K or -38.025 degrees celcius
