Which element of the third period requires the least number of moles of oxygen for the complete
combustion of 1 mol of the element?

A. phosphorus
B. aluminium
C. magnesium
D. sodium​

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.