An example of a substance that can be decomposed by a chemical change is:

A) silver

B) water

C) iron

D) helium

Why does saponification produce sodium lactate (and not lactic acid) as the final product?

Talia plugs her lamp into the wall and turns it on. To make the lamp work, which properties of metals in the lamp's wires are most important? a. shininess and malleability b. malleability and ductility c. ductility and conduction d.

How was urea originally produced in the lab according to the text? Concentrated sulfuric acid was accidentally added to sucrose. Friedrich Wohler was working with ammonium cyanate & found crystals of urea in his breakers.

List two current problems regarding clean water and a possible solution for each

How many helium atoms are in 12.00 grams of helium?

1) What is the mass of 5.24 moles of Fe504-7H2O?

The name given to the change of state from gas to liquid is

How many molecules of carbon dioxide, CO2, are present in 388.1 grams?

Radioactive elements will continue to decay until A. They have a stable nucleus B. They have a full octet of electrons C. They have a neutral electrical charge D. They have the same number of electron and protons

Which one of the following elements is stable?