3Fe+4H2O (yields) Fe3O4+4H2. What is the mole ratio of Fe3O4 to Fe?

A - 1:3

B - 1:4

C - 3:1

D - 4:3

List of elements that contain solid, liquid, gas

What is the mass of copper that increases its temperature by 285 degrees celsius when 186,000 j of energy is applied?

How are the arteries lead from your heart to your lungs different from the other arteries in your body

Mutations that neither benefit nor harm the organism have effect on the organism's survival.

What is the mass percent of potassium iodide in a 2.89 m solution of ki with a density of 1.27 g/ml?

When water is placed in a thin glass tube, it tends to climb up the walls of the tube. This effect is known as capillary action. What causes this capillary action? A. metallic bonding B. covalent bonding C. ionic bonding D. hydrogen bonding

Earth rotates once every 24 hours. What does this mean? A. Earth makes one full trip around the Moon every 24 hours. B. Earth completes a full spin on its axis once every 24 hours. C. Earth makes one full trip around the Sun every 24 hours. D.

Compare and contrast the outer core and the inner core.

What colors make the color turquoise?

12.23 g of ammonia (NH3) are dissolved in enough water to make 560.0 mL of solution. How many moles of NH3 are added to the water?