The first discovery, as opposed to first commercial application, of the water-soluble material used in contact lens is an example of:

1) a) If a sample of pure hydrogen gas is ignited very carefully, the hydrogen burns gently, combining with the oxygen gas of the air to form water vapor. Write the unbalanced chemical equation for this reaction.

How does a solvent affect rf value?

The compound AlCl3 contains how many atoms?

CH3-CH2-CH=CH-CH=CH2

Complete the passage about metallic bonding. In metallic bonding, (blank) move freely between neighboring atoms. Metals are ductile ductile because the forces that hold their atoms together are (blank)

What would happen if leaching did not orrur?

Where does geothermal energy come from? A. sunlight B. the oceans C. the land D. inside Earth E. wind

Dimethylnitrosamine (CH3) 2N2O, is a carcinogenic formed in foods from nitrite ions used as preservatives. Calculate each of the following for this compound. Show all work for full credit. a. molar mass b. What is the % N

Does biomass energy come from petroleum?

What type of bond would occur between carbon (C) and nitrogen (N) ? A. Metallic bond B. Ionic bond C. Paired bond D. Covalent bond