Which is a balanced equation for this reaction?

A. Fe + H2SO4? Fe2 (SO4) 3 + H2

B. 2Fe + H2SO4? Fe2 (SO4) 3 + H2

C. Fe + 3H2SO4? Fe2 (SO4) 3 + 3H2

D. 2Fe + 3H2SO4? Fe2 (SO4) 3 + 3H2

Why is evaporation of water greater in summer?

How can water be used for energy? by using solar panels. by having more windows in your home. by using sunlight passively and actively. by placing dams in tidal areas.

Suppose you are an observer standing on the Moon, looking back at Earth. If the moon is in the waxingquarter phase, what phase of the Earth would you see? A. waxing quarter B. full C. new D. waning quarter E. none; the Earth doesn't have phases

At takeoff, an aircraft travels at 62 m/s, so that the air speed relative to the bottom of the wing is 62 m/s. Given the sea level density of air to be 1.29 kg/m3, how fast must it move over the upper surface to create the ideal lift?

An object is dropped from the top of a building through the air (friction is present) to the ground below. How does its kinetic energy (KE) just before striking the ground compare to its gravitational potential energy at the top of the building

What is the best prediction for the weather on the day after high pressure system passes

Is it possible to have motion in the absence of a net force?

There are 2 charged particles, A and B. You know that particle A is positively charged. When you place particle B next to particle A, then particle B starts moving away from particle A. What does this mean for particle B?

The speed of light is now to be defined 2.99792458x10^8 m/s express the speed of light to three significant figures five significant figures seven significant figures

An element that is a very reactive gas is most likely a member of what group?