How is chemical energy useful? Give three examples.

A compound was found to be soluble in water. It was also found that addition of acid to an aqueous solution of this compound resulted in the formation of carbon dioxide.

Identify the step that is not part of the scientific method. conduct an experiment form a hypothesis draw a conclusion state the cause

Why is something that stores chemical energy?

A piece of glass is immersed in a liquid. it proceeds to float on the liquid's surface. this shows that the density of the glass is? the density of the liquid?

How many liters of H2O are produces @ STP by the combustion of 30g of CH4 CH4+2O2---> CO2 + 2H2O

Sierra did 500 J of work to move her couch. If she exerts 250 N of force on the couch, how far did she move it? (Work: W = Fd) 0.5 m 2 m 250 m 750 m'

Lead (ii) sulfide (pbs) has a ksp of 3.0 * 10-28. what is the concentration of lead (ii) ions in a saturated solution of pbs? 1.7 * 10-14m 1.5 * 10-14m 3.0 * 10-14m

A 2.17 gm sample barium reacted completely with water what is the equation for the reaction how many milliliters of dry H2 evoled at 21degree celcius and 748mm of Hg?

What does it mean for data to be continuous?

When an acid reacts with a base what compounds are formed? a. a salt only. b. water only. c. a salt and water. d. metal oxides only.?