28 Which of the following compounds contains a transition metal? A. magnesium bromide (MgBr2) B. sodium chloride (NaCl) C. potassium hydride (KH) D. iron oxide (FeO)

Which of the following is most likely true about water in chemical systems? A) Water dissolves nonpolar ionic compounds. B) Water dissociates ionic compounds. C) Water dissociates covalent molecules. D) Water dissolves nonpolar covalent substances.

What is the Molar mass of Fe2 (SO4) 3

Whats the difference between catalyst and atom

What is the mass of ice that is melted by 755 J of heat melt a piece of ice?

What does it mean when, we say that the earth's water is always moving, or part of a cycle?

In most food webs there are many producers, fewer herbivores, and even fewer carnivores. Which statement best explains why there are always fewer carnivores than producers in a food web? A. There is not enough space to illustrate them. B.

Which of Deeandra observation is scientifically testable

A round, three dimensional object is a?

The energy needed to start a chemical reaction is called

How does the motion of particles in the sun's plasma compare to the motion of particles in a solid? particles in both the plasma and a solid move around to fill available space.