1) Calcium carbonate contains 40.0% calcium by weight.
M(CaCO₃)=100.1 g/mol
M(Ca)=40.1 g/mol
w(Ca)=40.1/100.1=0.400 (40.0%)!
2) Mass fraction of this is excessive data.
3) The solution is:
m(Ca)=1.2 g
m(CaCO₃)=M(CaCO₃)*m(Ca)/M(Ca)
m(CaCO₃)=100.1g/mol*1.2g/40.1g/mol=3.0 g
Mechanical energy = mass x acceleration due to gravity x height
= 1x9.8x10 = 98J
Answer:
kinetic energy
Explanation:
There are two types of energy-- kinetic and potential energy. Energy in motion is called kinetic energy, whereas energy stored in an object is called potential energy.
Answer:
75.47
Explanation:
AS WE CANT WEIGHT AIR THE ANSWER IS CORRECT
Answer:
Gravitational potential energy
Explanation:
Because gravity is less on the poles
