Write and balance the equation for the complete combustion of acetylene, C2H2. Phase symbols and energy changes are optional.

What is the independent variable in this investigation? mass volume sample number substance density

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space