Answer:
198g
Explanation:
Molar Mass of CO2 = 12 + (2x16) = 12 + 32 = 44g/mol
Number of mole of CO2 = 4.5moles
Mass of CO2 =?
Mass = number of mole x molar Mass
Mass of CO2 = 4.5 x 44 = 198g
Be careful on this one! Mass is always conserved, based on the law of conservation of mass. Since their was a change in state, we went from a solid to a gas, so, the weight would be lighter, not the mass.
Same amount of mass.
A and 3
B and 6
C and 5
D and 1
E and 2
F and 4
T = 2T , P = 2P as given in the question
Volume = mass *density
Now apply ideal gas law
PV=nRT
V = nRT/P
substitute value of V and P
V = nR2T/2P
V =nRT/P
mass*density = nRT/P
density will not change
Answer:
Erosion by water
Explanation:
Moving water carrying away small pieces of rock is erosion by water.
E.g when the sea hits on the cliff and then takes away the fragments with it
Hope I helped
