Given the chemical reaction Fe3O4 + H2 ⟶ Fe + H2O, identify the coefficient of H2O in the balanced equation.

1

2

6

4

In which orbitals would the valence electrons for selenium (Se) be placed?

Justify which individual offspring would more likely survive, a fish reproduced from external fertilization or a horse reproduced from internal fertilization.

What are index fossils and how are they used to determine the absolute age of sedi mentary rocks

a propane tank containing 55l has 2.46 moles of the gas C3 is propane what would the number of moles if 1/2 of the gas is used

If a Ferrari with an initial velocity of 10m/s accelerates at a rate of 5m/s2 for 3 seconds. What will it's final velocity be?

NaOH+HCl--> NaCl+H2O what is the total number of grams of H2O produced when 116 grams of the product, NaCl, is formed?

Is a sample of liquid nitrogen more dense than a sample of nitrogen gas

You have a balloon containing 1 L of air at STP in a vacuum chamber. What will the volume of the balloon be when you reduce the pressure by half and increase the temperature to 373 K?

Which method will correctly determine whether the forces on an object are balanced or unbalanced? A. Multiply the forces in the horizontal direction by the forces in the vertical direction. B.

Carbon is found in all known forms of life. Which statement best describes why carbon is uniquely suited to forming macromolecules such as those found in living organisms? A. Carbon forms large compounds that are not chemically reactive. B.