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Solve for w.

w^2-w-2=0

A sample of gas has an initial volume of  at a pressure of . If the sample is compressed to a volume of  what is its pressure?

Which one of the following compounds is insoluble in water?

A)  
B)  
C)  
D)  
E)  

What are the rules in assigning oxidation numbers?

Which member in each pair has the stronger intermolecular forces?

(a) or  

(b) or

(c) or

What is the gas density of at STP?

How many grams of can be made from  and excess ?

Evaluate the following probability expressions. Unless directed differently, use four decimals in your answers. 

a)
b)    
c)      
d)  
 

Which set of quantum numbers could correctly describe a orbital?

The pH of a solution is measured to be . What is its hydrogen ion concentration?

When aqueous sodium carbonate, , is treated with dilute hydrochloric acid, , the products are sodium chloride, water and carbon dioxide gas. What is the net ionic equation for this reaction?

In which situation the geometric distribution is most suitable? Give real examples.

In which situations does geometric distribution is most suitable, give real examples?

What are two examples of molecules with an incomplete octet and an expanded octet?

of calcium hydride reacts with of water at in a container according to the reaction below.

a) What is the balanced equation for the reaction?

b) What is the limiting reactant? 

c) What is the pressure of the gas in the container?

1.) List two similarities between an ANOVA with independent measures and an ANOVA with repeated measures.

2.) List two differences between an ANOVA with independent measures and an ANOVA with repeated measures.

3.) You were asked by a friend to explain what a repeated measure design is. Provide a research example of a repeated measure design and explain why your example represents this type of design.

Is nonpolar or polar? Explain your answer.

of a solution of potassium hydroxide is transferred to an empty volumetric flask. This flask is made up to the mark with distilled water and then shaken well. What is the concentration of the potassium hydroxide in the second flask?

 of a  solution of potassium hydroxide is transferred to an empty  volumetric flask. This flask is made up to the mark with distilled water and then shaken well. What is the concentration of the potassium hydroxide in the second flask?

A balloon with an initial volume of at a temperature of is warmed to . What is its volume at the final temperature?

Which of the following statements about polar molecules is false?
A) A molecule with polar bonds can be nonpolar.
B) A molecule with polar bonds can be polar.
C) A molecule with only nonpolar bonds can be polar.
D) A molecule with 120° bond angles can be polar.
E) A molecule with 180° bond angles can be polar.

What is the ground-state electron configuration of the ion?

For single bonds between similar types of atoms, how does the strength of the bond relate to the sizes of the atoms? Explain.

What is the principal quantum number of ?

If of an ideal gas occupies tank at a temperature of , what is the pressure inside the tank?

What volume of a  solution of aluminum iodide contains in  ?

What is the formula for pentanitrogen decaiodide?

Calculate the volume in milliliters  of a  solution to obtain .

A gas has an initial volume of at and a final volume of . What is its final temperature in degrees Celsius?

How many grams of if a solution containing  grams of sodium phosphate produced grams of when reacted with grams aluminum chloride in solution? 

What is the pressure in the container if  gas is sealed in a  container at ?

What is the molar mass of acetone?

What are the guidelines you must follow when naming a binary ionic chemical compound?

Calculate the volume in milliliters of a   solution to obtain .

What is the molar concentration of the lithium ions in a  solution?

What is the molar concentration of the lithium ions in a solution?

If a solid dissolves in water and the solution does not conduct electricity, what type of solid is it?

What are valence and core electrons?

At STP, a volume of of neon gas would contain how many moles of neon?