First of all, the formula for finding Kelvin is Celsius + 273
Therefore, if we subtract 273, we get the temperature in degrees
120 - 273 = - 153
Therefore, the answer is (1), or -153 degrees Celsius
Hope this helped!! :D
2HCl + Ca = CaCl₂ + H₂
n(HCl)=cv
n(Ca)=m(Ca)/M(Ca)
n(HCl)=2n(Ca)
cv=2m(Ca)/M(Ca)
v=2m(Ca)/{cM(Ca)}
v=2*60/{1.25*40}=2.4 L
B I hope it’s right I don’t really help a lot but yeah lol
1 mole => 6.023 x 10^23 molecules
x => 8.5 x 10^25 molecules
x = 8.5x10^25/ 6.023 x 10^23 = 141.1
