Which reaction below represents a balanced, combustion chemical reaction?

A) C2H5OH + 3O2 → 2CO2 + 3H2O

B) C2H5OH + 3O2 → 2CO + 3H2O

C) Li2CO3 → Li2O + CO2

D) 2Li + 2H2O → 2LiOH + H2

What is formed when the number of electrons does not equal the number of protons. a). Atom b). Isotope c). Ion

In a plant-to-plant movement, valuation occurs at: a. Goods issue and the valuation price of the issuing plant. b. Goods receipt and the valuation price of the issuing plant. c. Goods issue and the valuation price of teh receiving plant d.

A 1.0-m long wire is carrying a certain amount of current. The wire is placed perpendicular to a magnetic field of strength 0.20 T. If the wire experiences a force of 0.60 N, what is the magnitude of the current moving through the wire?

What is your frame of reference if you are standing on the sidewalk and see the bus go by? How can you tell that the bus is moving?

One differnce between magnetic poles and elcyrical charges is that

When you throw a ball the work you do to accelerate it equals the kinetic energy the ball gains?

Old-fashioned heating systems sent steam into radiators in each room of a house. in the radiators, the steam condensed back to water. analyze this process and explain how it heated a room.

If a space ship is traveling with a constant acceleration of 75 m/s^2 and travels for three weeks, how far did it travel and what was it's velocity before it stopped?

How could you change your track to maximize the kinetic energy of the skater? Explain?

3. However, until 2002, these three countries used different A. currents B. undercurrent C. currencies D. currency E. crosscurrent F. current G. currently