General Questions and Answers

Enter your answer in the provided box. A sample of cigarette smoke contains 2.03% carbon monoxide. The U.S. national ambient air quality standard for CO in a 1-hr period is 35.0 ppm. How many times greater than this standard is the CO concentration in cigarette smoke?

Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below. bismuth hydroxide Bi(OH)3 hydrogen peroxide H₂O₂ periodic acid HIO4

1. A 25.5 liter balloon holding 3.5 moles of carbon dioxide leaks. If we are able to determine that 1.9 moles of carbon dioxide escaped before the container could be sealed, what is the new volume of the container?

In Kiss Me, Kate, why is Fred dressed in Shakespearean attire, while Lilli wears modern clothes? None of the choices In this adaptation, the actors play actors, and Lilli refuses to wear her costume. In this adaptation, Fred's character is obsessed with Shakespeare. In this adaptation, the actors play actors. Fred is still in his costume, but Lilli is dressed in modern clothes and ready to leave the building.

Identify the type of sarcasm in the lines below. "No, nothing's wrong. I've failed at my latest business venture, but what else is new?" Self-deprecating Polite Exaggeration Raging

The following poster was Nazi propaganda stating "Hitler is building" promoting German labor efforts during the 30's. The head of the Nazi propaganda campaign that produced this was.. Joseph Goebbels David Hasselhoff Leon Trotsky Winston Churchill

All the following are accurate about the 1938 Munich Conference between British Prime Minister Neville Chamberlain and Germany's Adolf Hitler EXCEPT... Hitler accepted the British offer to allow Germany to keep Austria if they gave up their demands for the Sudetenland Chamberlain returned from the conference claiming his agreement with Hitler guaranteed "Peace in our Time" The British backed down and Hitler kept Austria and was permitted to take the Sudetenland Germany's annexation of Austria and demands for the Sudetenland prompted the British to ask for the meeting

11. Identify one effect of the creation of Gutenberg's press. 1. The Ottoman takeover of Constantinople 2. The ideas of the Protestant Reformation spread further and more quickly 3. Classical Greek and Roman writing was lost during the Middle Ages 4. Gutenberg became a wealthy success 12. Identify another effect of the creation of Gutenberg's press. 1. Literacy rates increased 2. Scientific discoveries were less likely to be widely known 3. Interest in the Americas declined 4. The Middle Ages

.Write the balanced chemical equation that shows the formation of ammonia gas (NH3) from its elements. a) If A H for this reaction is - 22.08 kcals per mole of ammonia, write the thermochemical equation (in kJ). Hint: 1 calorie = 4.184 joules b) Classify this as an endothermic or exothermic reaction. c) Calculate the amount of heat produced when 85.0 grams of ammonia are formed. d) If 750 kJ are involved, what volume of ammonia (at STP) would be produced? e) How much heat is involved when 1.73 x 1025 molecules of hydrogen gas are completely reacted?

Enter your answers in the provided boxes. For the 1-hour average value, a city reports 0.140 ppm ozone. The permissible limit is 0.120 ppm ozone. By what amount, in ppm, does the reported value exceed the 0.120 ppm ozone? By what percent does the reported value exceed the permissible limit? ppm

Which of the following statements about ionic compounds is true? Compounds that consist of a metal bonded to a metal Held together by attractions between +ions and -ions Electron(s) are transferred in chemical bond Would include Cas Would include CO2

(It) brought the potato, the pineapple, the turkey, dahlias, sunflowers, magnolias, maize, chillies and chocolate across the Atlantic. On the other hand, tens o died in the pandemics of the 16th century, victims of smallpox, measles and the other diseases brought by Europeans (and don't forget that the African slave tra begun by the Europeans, to replace the workforce they had decimated)."... - Michael Wood, BBC History (adapted) " Which historical development is being described in this quotation? 1. establishment of the line of Demarcation 2. creation of the Hanseatic League 3. Columbian exchange 4. Glorious Revolution

The density of isopropanol-water solutions changes as percentage of rubbing alcohol in the solution changes. A student has measured the mass of a isopropanol-water solution liquid sample to be 4.32 g. The volume was measured using a graduated cylinder as shown below. What was the density of the liquid? What was the % of isopropanol in the liquid? Use Table 1 to answer the second part of the question. Fill in the blanks below. The volume of the liquid = The density of the liquid = The liquid is of known _ % of isopropanol in water

Article V of the Constitution states that there are two prohibitions to amending the Constitution including: No amendment prior to 1808 that would affect the first and fourth clauses of Article I, Section 9 No amendment that would deprive a state its two Senate seats without its consent No amendment that would in any way curtall the Bill of Rights No amendment prior to 1808 that would affect the first and fourth clauses of Article 1, Section 9, and would deprive a state of Its two Senate seats without prior consent.

The balanced chemical equation for the reaction between silver nitrate and copper is: 2 AgNO3(aq) + Cu (s)→→→ Cu(NO3)2 (aq) + 2 Ag (s) We can interpret this to mean: 2 moles of silver nitrate and React to produce: mole(s) of copper(II) nitrate and mole(s) of copper mole(s) of silver

20. In this passage about a conflict in Mexico, whose perspective is being expressed 1. Aztec warrior 2. Spanish conquistador 3. Portuguese explorer 4. Inca emperor 21. According to this author, which factors influenced the outcome of the conflict? 1. efficiency and education 2. climate and disease 3. tribute and tradition 4. technology and fear

Many chromate ( CrO42) salts are insoluble, and most have brilliant colors that have led to their being used as pigments. Choose the correct net ionic equation for the reaction of Ca²+ with a chromate ion. 2Ca²+ (aq) + CrO42 (aq) → Ca₂ CrO4(s) Ca²+ (aq) + 2CrO4² (aq) → Ca(CrO4)2 (8) Ca²+ (aq) + CrO4 (aq) → CaCrO4 (aq) Ca²+ (aq) + CrO4²- (aq) → CaCrO4(s)

What was the final event that brought an end to the Cold War in 1991? German reunification The collapse of the Soviet Union The tearing down of the Berlin Wall The election of Ronald Reagan

If electricity of sufficient voltage is passed into a solution of potassium chloride in water, a reaction takes place in which elemental hydrogen gas and elemental chlorine are produced, leaving a solution of potassium hydroxide. Choose the unbalanced equation for this process. KCl(aq) + H₂O(1)→ KOH(aq) + Cl₂ (g) + H₂(g) KCl(aq) + H₂O(l) → KOH(aq) + HCl(aq)

All the following are accurate about the use of the atomic weapons on Japan EXCEPT... Harry Truman only found out about the Manhattan Project after the death of Franklin Roosevelt Truman felt that using the weapon would ultimately save American lives, with estimates ranging to half a million KIA if an invasion was attempted. After a second bomb was dropped on Nagasaki, the Japanese emperor broke a deadlock to decide to surrender The Japanese surrendered immediately after learning of the 80,000 that were killed instantly in the Aug 6th Hiroshima bomb

The coefficients in a chemical equation represent the masses, in grams, of all reactants and products. relative numbers of moles of reactants and products. number of atoms in each compound in a reaction. number of valence electrons involved in the reaction.

According to the modern atomic model, electrons are found in _ and neutrons are found in the respectively. electron clouds, nucleus proton clouds, shell proton clouds, nucleus electron clouds, shell

If a sample of pure hydrogen gas is ignited very carefully, hydrogen burns gently, combining with the oxygen gas of the air to form water vapor. Choose the unbalanced chemical equation for this reaction. H₂(g) + H₂O(g) → H₂O₂ (1) H₂(g) + O₂(g) → H₂O(g) H₂(g) → H₂O(g) H₂(g) + F2 (g) → H₂O(g)

For the following reaction, 6.26 grams of methane (CH4) are allowed to react with 28.1 grams of carbon tetrachloride. methane (CH₂) (g) + carbon tetrachloride (g) dichloromethane (CH₂Cl₂) (g) What is the maximum amount of dichloromethane (CH₂Cl₂) that can be formed? What is the FORMULA for the limiting reagent? What amount of the excess reagent remains after the reaction is complete? grams grams

The element thallium (Tl) has two naturally occurring isotopes, 203 T1 and 205 T1, with an average atomic mass of 204.383 u. Thallium is 70.48% 205 Tl, and the atomic mass of 205 Tl is 204.974 u. Calculate the atomic mass of 203 Tl. u

The Holocaust is an example of ___ the deliberate killing of people, especially those of a particular ethnic group. Social Darwinism apartheid genocide civil disobedience

Which group lost its political fight in terms of the ratification of the Constitution, but significantly contributed to the addition of the Bill of Rights? The Republicans The Federalists The Anti-Federalists The Torles

The combustion of a sample of butane, C4H10 (lighter fluid), produced 2.46 grams of water. 2 C4H10+ 13 0₂----> 8 CO₂ + 10 H₂O (a) How many grams of butane burned? (b) How much oxygen was used up in Liters?

1. How many MOLECULES of water are present in 1.76 moles of this compound? molecules. 2. How many MOLES of water are present in 4.53×1022 molecules of this compound? moles.

The Anti-Federalists believed __ was the greatest threat to the future of the country. a centralized bank a powerful central government a powerful judiciary a powerful private business sector

The legislative, executive and judicial branches are established in the Bill of Rights the First Amendment the first three Articles of the Constitution the Second through Fourth Articles of the Constitution

Discussions about post war decisions, including the division of Germany, Stalin's request for communist satellite states and the creation of the United Nations were discussed by Churchill, Stalin and Roosevelt at which meeting in early 1945? Munich Conference Geneva Convention Berlin Conference Yalta Conference

The similarity between Ernst Rutherford's and Niels Bohr's model of the atom is that they contain ___ and ___ orbit the nucleus, respectively. a nucleus, negatively charged protons a nucleus, negatively charged electrons a nucleus, negatively charged neutrons a nucleus, negatively charged atoms

Although we usually think of substances as "burning" only in oxygen gas, the process of rapid oxidation to produce a flame may also take place in other strongly oxidizing gases. For example, when iron is heated and placed in pure chlorine gas, the iron "burns" according to the following (unbalanced) reaction: Fe(s) + Cl₂(g) → FeCl3 (s) How many milligrams of iron(III) chloride result when 10.50 mg of iron is reacted with an excess of chlorine gas? mg FeCls

Group of people that the Nazis viewed as the master race, with the first class consisting of blond haired, blue eyed athletically fit individuals. Aryans Armenian Slavic Celtic

How many Jews lost their lives as a result of Hitler's "Final Solution" during the Holocaust 13 million 1 million 6 million 40 million

1. How many MOLECULES of dioxygen difluoride are present in 9.03 grams of this compound? __ molecules. 2. How many GRAMS of dioxygen difluoride are present in 4.58×1022 molecules of this compound? grams.

All the following groups were targeted by the Nazis during the course of the Holocaust EXCEPT... Poles Handicapped Individuals and Homosexuals Soviet Prisoners of War and political opponents Aryans

Which of these methods of amending the U.S. Constitution was used just once, to ratify the 21st Amendment, which ended prohibition of alcohol? It is proposed by a two-thirds vote in each house of Congress and approved by three-fourths of the state legislatures. It is proposed by a two-thirds vote in each house of Congress and approved by state conventions in three-quarters of the states. It is proposed by a convention called by two-thirds of the states and approved by a convention of three-quarters of the states.

How does Niels Bohr's model differ from Ernst Rutherford's model? Niels Bohr's model Improved Ernst Rutherford's model by focusing more on the nucleus. Niels Bohr's model Improved Ernst Rutherford's model by focusing more on the protons. Niels Bohr's model focused on the neutrons. Niels Bohr's model focused on the electrons.

Which statement BEST explains why a manufacturer may decide to use a high temperature for the production of a certain chemical when according to Le Chatelier's principle a low temperature maximizes the amount of this chemical formed? The reaction will release more heat at a high temperature. The reaction will become irreversible at a high temperature. The reaction will proceed at a faster rate at a high temperature. The reaction will require less raw material at a high temperature.

Which totalitarian leader used violent removals of opponents, known as purges, subjecting the victims to execution or life in labor camps known as gulags? Hideki Tojo Adolf Hitler Benito Mussolini Joseph Stalin

What country became a communist nation in 1949, expanding the anxiety of the spread of communism in Asia? China Japan India Philippines

A common experiment in introductory chemistry courses involves heating a weighed mixture of potassium chlorate, KCIO3, and potassium chloride. Potassium chlorate decomposes when heated, producing potassium chloride and evolving oxygen gas. By measuring the volume of oxygen gas produced in this experiment, students can calculate the relative percentage of KCIO3 and KCl in the original mixture. Choose the balanced chemical equation for this process. KCIO3 (8)→ 2KC1(s) + 3N2 (9) 2KC103 (8)→ 2KCl(s) + 302 (g) KC103 (s) → 2KCl(s) +502 (9) KCIO3(s) → KCl(s) +202 (9)

British Prime Minister during the course of WWII whose leadership guided them to persevere during the war. Harry Truman Winston Churchill Neville Chamberlain Joseph Goebbels

If Sample #1 contains 2.3 moles of chlorine gas in a 3.5 liter balloon and at the same conditions Sample #2 contains 1.2 moles of chlorine gas, what is the volume of the balloon that contains sample #2?

If aqueous solutions of potassium chromate and strontium chloride are mixed, a bright yellow solid (strontium chromate) forms and settles out of the mixture, leaving potassium chloride in the solution. Choose a balanced chemical equation for this process. K₂ CrO4 (aq) + SrCl₂ (aq) → SrCrO4(s) + 2KCl(aq) K₂ CrO4 (aq) + 3SrCl₂ (aq) → 4SrCrO4(s) + 2KCl(aq) K₂ CrO4 (aq) + 2SrCl₂ (aq) → 5SrCrO4(s) + 3KCl(aq) K₂ CrO4 (aq) + 3SrCl₂ (aq) → SrCrO4(s) + KCl(aq)

"From Stettin in the Baltic to Trieste in the Adriatic an Iron Curtain has descended across the Continent. Behind that line lie all the capitals of the ancient states of Central and Eastern Europe. Warsaw, Berlin, Prague, Vienna, Budapest, Belgrade, Bucharest and Sofia; all these famous cities and the populations around them lie in what I must call the Soviet sphere, and all are subject, in one form or another, not only to Soviet influence but to a very high and in some cases increasing measure of control from Moscow." What was Winston Churchill's conveying with the" Iron Curtain" speech in 1946? 32 of 45 Winston Churchill 1946 Speech at Westminster College, Missouri That the industrial growth of communist nations had made them a threat to the global economy That Soviet's had built massive fortifications along the German border Western European nations were unable to trade with countries in Eastern Europe after WWII That communist control over Eastern Europe under the Soviet Union was a threat to Europe E 26 16:3 Nex

Merchants usually sell small nuts, washers, and bolts by weight (like jelly beans!) rather than by individually counting the items. Suppose a particular type of washer weighs 0.120 g on the average. a. What would 94 such washers weigh? g b. How many washers would there be 194 g of washers? washers

Given the combustion reaction C3H8 +50₂ = 3CO₂+ 4H₂O, how many grams of water can be produced from 1.00 liter of O₂at standard temperature and pressure? 64 g 9.9 g 1.21 g 1.67 g