The 3 in 4p3 represents:

a. third energy level

b. the number of electrons

c. period 3

d. the third sub level e. Li

What type of compound is cu2so4

Approximately 2.5 kg of carbon dioxide gas are produced for every liter of gasoline burned in an automobile gasoline engine.

What is the pH of a 8.7 x 10^-12 M OH - solution? pH = ?

In a laboratory experiment, john uses a message to seperate soil particles from water. Which technique separation which technique of separation is he using

Which equation represents a nuclear reaction that an example of an artificial transmutation? 1) 43/21 Sc-->43/20 Ca + 0/+1 e 2) 14/7 N + 4/2 He - - > 17/8 O + 1/1 H 3) 10/4Be-->10/5B+0/-1e 4) 14/6C-->14/7N+0/-1e

How is petrol separated from the mixture of hydrocarbons in crude oil?

The following chemical reaction takes place in aqueous solution: MgBr2 (aq) + 2KOH (aq) →Mg (OH) 2 (s) + 2KBr (aq) Write the net ionic equation for this reaction.

How many molecules are in 1.2 moles of H20?

Which of the following is diamagnetic? A) Sn B) Pb 2+ C) I D) N E) All are paramagnetic

Based on your observations in the lab, what do you think happens to the majority of water (not, ice) at the poles? at the equator?