What is the theoretical yield of H2O if 130 g of H2O is produced from 18 g of H2 and an excess of O2?

What were the first 16 elements known in 1760

While traveling along a highway a driver slows from 24 m/s to 15 m/s in 12 seconds. What is the automobile's acceleration? (Remember that a negative value indicates a slowing down or deceleration.)

Which one of the following is a chemical change? A. cutting a bar of sodium metal into pieces with a knife B. lard when heated changes to liquid C. a freshly cut apple turns brown D. mixing sugar and cinnamon E.

What is the ph of a 1 m solution of ammonium hydroxide?

3) _C2H4O2 + _ 02 → _ CO2 + _ H2O

Write a net ionic equation for the overall reaction that occurs when aqueous solutions of phosphoric acid (h3po4) and potassium hydroxide are combined. assume excess base. use the pull-down boxes to specify states such as (aq) or (s).

What are the coefficients that will balance the skeleton equation below? n + h ⟶ nh?

Restate Newtons first law in terms of acceleration

Why is burning is not a recommended method of disposing plastics

Why do cells have a plasma membrane? A. to separate protein from the nucleus B. to distinguish plants from animals C. to define the size of the cell D. to separate the inside of the cell from its enviroment