According to the following chemical reaction
SiO2(s) + 3C(s) + 3 SIC(s) + 2C0(g)
if 3 mol of SiO2 are added to 4 mol of C
How many moles of excess reactant
remain?

What is driving behind plate tectonics (plate movment)? a) gravity only b) inertia c) convection and gravity d) the sun theres no option for science so i picked chemistry. plz

Which subshell is represented by the actinides family?

Which statement is true regarding the diagram of circle p? the sum of y and z must be 2x. the sum of y and z must be x. the difference of z and y must be 2x. the difference of z and y must be x