Formaldehyde (H2CO) reacts with oxygen to form CO2 and H2O. How many moles of CO2 will be produced from reacting 2 moles of H2CO with oxygen.
A. 2
B. 8
C. 4
D. 1

Which one of the following gases is not an important component of soil?

The first element on the periodic table of elements is carbon. a. true b. false

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