Which formula represents an acid?

A. CH4

B. HCl

C. NH3

D. PH3

Why do halite crystals always break into smaller crystals and the same shape?

When 1.0g of solid naoh dissolves in 10 l of water, how much heat is released?

Which molecule will have a double bond?

Why did we have you determine the reaction rate using reactant consumed per unit of time instead of product formed per unit of time?

A Block has a volume of 0.09 m³ and a density of 4000 kg/m³. what's the force of gravity acting on the block in water

Which is NOT a property of gold? A. rare B. tarnishes C. malleable D. corrosion resistant

The element rubidium has two naturally occurring isotopes. The atomic mass of 85Rb (72.17 percent abundant) is 84.911794 amu. Determine the atomic mass of 87Rb (27.83 percent abundant). The average atomic mass of Rb is 85.4678 amu.

Describe what you can do to slow down, or stop the continuous negative human treatment of our aquatic biomes.

If the hydrogen ion concentration is 10-7M, what is the pH of the solution? Show all work.

When it is raining water is returning to earth as a water cycle stage called