The Bessemer process helped make the Industrial Revolution possible by:

How did society change during the industrial revolution?

The system of mass production in manufacturing developed rapidly

a) after the industrial revolution.

b) during the gilded age.

c) before the industrial revolution.

d) after the gilded age.

Which of the following is a buffer system?

A) HCI and NaOH

B) H2CO3 and KHCO3

C) NaCl and NaNO3

E) NaCl and NaOH

Post-genocide Rwanda has suffered economically because __________.

a) there is little left in the country, and it continues to be politically and socially unstable

b) few international organizations wish to invest in Rwanda or provide aid

c) most of those who were killed were in their prime money-earning years, and the massive loss of population left many jobs empty

d) the economy is not trying to rebuild

What is a saturated solution?
A) A solution with as much dissolved solute as it can hold at a given temperature.

B) A heated solution with more dissolved solute than it can hold at a lower temperature.

C) A solution that holds less dissolved solute than is possible at a given temperature.

D) A solution that holds as much solvent as possible at all temperatures.

During the Middle Ages, what was the importance of the Manor System (Manorialism)?

Write an equilibrium expression for each chemical equation.

2CO(g)+O$_2$(g)⇌2 CO$_2$(g)

a. $K_{eq}=\dfrac{2[\ce{CO2}]^2}{2[\ce{CO}]^2[\ce{O2}]}$

b. $K_{eq}=\dfrac{[\ce{CO2}]^2}{[\ce{CO}]^2[\ce{O2}]}$

c. $K_{eq}=\dfrac{[\ce{CO}]^2[\ce{O2}]}{[\ce{CO2}]^2}$

d. $K_{eq}=\dfrac{2[\ce{CO2}]^2}{[\ce{CO}][\ce{O2}]}$

In what ways is the model of an atom a scientific model? In what ways is it incorrect ?

In this unit you encountered several ways to represent various entities and how they form compounds. List at least three different ways, and explain a benefit of each one.

The owner of a charter fishing boat has found that $12 \%$ of his passengers become seasick during a halfday fishing trip. He has only two beds below deck to accommodate those who become ill. About to embark on a typical half-day trip, he has 6 passengers on board. What is the probability that there will be cnough room below deck to accommodate those who become ill?

Group 2 elements have two valence electrons. Which kind of bond will they most likely form, and why?

a. An ionic bond is likely because they will want to give away two valence electrons in order to become stable.

b. A metallic bond is likely because they are metals and can bond with other metals.

c. A covalent bond is likely because they want to share those two valence electrons in order to become stable.

d. An ionic bond is likely because they are metals and will want to bond with nonmetals.

Neon (Ne) is an element in group 8a of the periodic table how do the electron dot diagram of this element?

Sodium and oxygen combine to form sodium oxide, which has the formula $\mathrm{Na}_2 \mathrm{O}$. Use the periodic table to predict the formulas of the oxides of potassium, rubidium, and cesium. What periodic property of the elements are you using?