Physical Chemistry
General
A particular beer is 6.50 % ethanol by volume (C₂H6O). If a single bottle of beer contains 750.0 mL of beer, what quantity in moles of ethanol (C₂H6O) are present in the bottle? The density of ethanol is 0.789 g ethanol/mL ethanol
Physical Chemistry
General
Microorganisms are often used in the health industry. Specifically, they are used in which of the following? cryptozoology feng shui biotechnology celestial body position
Physical Chemistry
General
A water treatment tablet contains 20.0 mg of tetraglycine hydroperiodide, 40.0% of which is available as soluble iodine. If two tablets are used to treat 1.00 liter of drinking water, what is the concentration in ppm of iodine in the treated water? (density of water = 1.00 kg/L)
Physical Chemistry
General
Which sentence is capitalized correctly? Lake superior is the largest of the Five Great Lakes of North America. Lake Superior is the largest of the five Great Lakes of North America. Lake Superior is the largest of the five great lakes of North America,
Physical Chemistry
General
What is the limitation of accepting photographs and film footage as a primary source? There are multiple copies of a photograph. They can be manipulated They can be outdated
Physical Chemistry
General
Suppose your friend is trying to answer the following question: "How many centimeters are in 4.7 meters?" Your friend knows there are 100 cm in 1 m, exactly. Yet, when they solve the problem, they got an incorrect answer of "0.047 cm." Explain what they may have done wrong and how you could help them fix their mistake.
Physical Chemistry
General
Which of the following is the concise alternative for the phrase: due to the fact that fact since agree
Physical Chemistry
General
"Translate" both of the following sentences into equations (#1 is a calculation, and #2 is a reaction) 1.6.8 molar times 0.0100 liters divided by 0.0250 liters equals 2.7 molar. • Tip: remember to abbreviate the units! 2. 1 mole of solid calcium carbonate decomposes into 1 mole of calcium oxide solid and 1 mole of carbon dioxide gas. • Tip: don't forget to include the physical states and stoichiometry!
Physical Chemistry
General
What kind of intermolecular forces act between a carbon monoxide molecule and a dichloroethylene (CH₂CCI₂) molecule? Note: If there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force.
Physical Chemistry
General
A student is trying to convert nanometers into meters, and she knows that there are 1x10⁹ nm in 1 m. She expresses this ratio as either 1x10 nm 1m This ratio is called a(n). molar ratio O unit O dimensional factor conversion factor Avogadro factor
Physical Chemistry
General
Convert the following. Show your conversion factors and calculations. You can use an ordinary number or scientific notation to report your final answer. (2.4, 2.5) a. 4.6 km to cm b. 24 000 mm to m c. 875 g to kg d. 4900 mg to g e. 0.00016 L to mL f. 7850 kL to L
Physical Chemistry
General
What quantity in moles of silver atoms do you have if you have 5.09 × 1021 atoms of silver. (The mass of one mole of silver is 107.87 g.)
Physical Chemistry
General
Choose an appropriate question to ask when you add salt to water to make pasta. What is the effect of adding salt to boiling water? What is the effect of salt on the water temperature?
Physical Chemistry
General
What is the mass in grams of 3.57 x 1015 molecules of NO?
Physical Chemistry
General
Below is a list of views that Lewis Cass had. Put an "X" next to the ones that were inspired by Manifest Destiny.
Physical Chemistry
General
As exact conversions, the following information is known: 1 mile = 5280 ft. 12 in. = 1 ft. 3 ft. = 1 yard 1 hr = 60 min 1 day = 24 hr A particular species of bird can fly for 36.0 hours straight, covering a distance of 154 miles. At this rate, how many feet does the bird travel in 46.0 min?
Physical Chemistry
General
Fingernail-polish remover is primarily acetone (C3H6O). You may want to reference (Pages 169-190) Chapter 6 while completing this problem. How many acetone molecules are in a bottle of acetone with a volume of 345 mL? (Assume that the density of acetone = 0.788 g/cm³.) Express the number of molecules to three significant figures
Physical Chemistry
General
In the United States Supreme Court decision the Court held that the districts violated the population differences among Georgia's congressional Constitution. Bush v. Vera Goumillion v. Lightfoot Wesberry v. Sanders
Physical Chemistry
General
piece of iron An irregularly-shaped (Fe) has a mass of 60.0 grams. What is the volume in cm³ of this piece of iron if its density is 7.87 g/cm³?
Physical Chemistry
General
The element gallium has only two naturally occurring isotopes: 69 Ga with a mass of 68.92557 amu and an abundance of 60.108% and 71 Ga with a mass of 70.9247 amu and an abundance of 39.892%. Calculate the atomic mass of gallium. Express your answer to four significant figures and include the appropriate units.
Physical Chemistry
General
Looking only at the periodic table, write the complete electron configuration (1s2 2s2 etc.) for the following: Write the configuration to reflect the order of elements in the periodic table. Na, Z = 11 Pd Z = 46 FI, Z = 114
Physical Chemistry
General
In a lab designed to create MgCl₂ from a reaction between HCI (aq) and Mg (s), you start with a 5.259 g sample of Mg. The sample is placed in the acid and allowed to react until all of the magnesium is consumed. The beaker is then heated until only the MgCl₂ remains. a. What are the products of this reaction? b. How much MgCl₂ would you expect to produce?
Physical Chemistry
General
Using the isotopes of the element with 16 protons, calculate the molar mass of that element? 24.0% of the atoms of the element has 16 protons and 13 neutrons 37.0% of the atoms of the element has 16 protons and 14 neutrons 23.0% of the atoms of the element has 16 protons and 17 neutrons 16.0% of the atoms of the element has 16 protons and 20 neutrons
Physical Chemistry
General
Explain where you see geometry in your everyday life. (Angles, lines, segments, midpoints, bisectors, etc.) (One example of i.e. One example of intersecting lines is on the road Some roads are perpendicular, some are parallel and some intersect at different degree measures.
Physical Chemistry
General
Progressive taxes are those that: Rise as income increases Stay flat regardless of income Rise as income decreases
Physical Chemistry
General
The 25th Amendment provides the process for replacing the president vice president secretary of state
Physical Chemistry
General
What is "soft" money? Money donated for "party activities" but through loopholes are funneled to candidates for President and Congress Paper currency Money used by campaigns to fund such luxuries as private planes, fancy hotel suites and limousines
Physical Chemistry
General
States set up counties, and therefore counties administer state law, usually performing such functions as keeping the peace and maintaining jails, assessing and collecting property taxes, keeping record and conducting elections. assessing and collecting property taxes. keeping the peace and maintaining jails.
Physical Chemistry
General
When Paine talks about monarchy and hereditary succession in his essay, "Common Sense", what point does he make? Kings are the means of happiness to mankind How such a race came into the world should be enquired of Distinction of men into kings and subject has a religious reason
Physical Chemistry
General
How does a person's sense of political efficacy affect his or her voting behavior? One might vote because he/she believes the vote will make an impact. Also, a person may not vote because he/she feels an individual vote doesn't matter. A person may not vote because he/she feels an individual vote doesn't matter. One might vote because he/she believes the vote will make an impact.
Physical Chemistry
General
How much money will it cost you to drive 115.0 miles if your car gets 25.70 miles per gallon and gas costs \$3.309/gallon?
Physical Chemistry
General
A blood sample of 3.03 milliliters is collected from a patient to be analyzed for a platelet count. Human blood should have around 1.04 kg/L platelets. What is the expected mass in grams of platelets in the blood sample?
Physical Chemistry
General
All men are born free and equal, and have certain natural, essential, and unalienable rights; among which may be reckoned the right of enjoying and defending their lives and liberties; that of acquiring, possessing, and protecting property; in fine, that of seeking and obtaining their safety and happiness. Written by John Adams just seven years before the U.S. Constitution, this wording appears in a state constitution that became a model for the federal version. From which state does it come? Connecticut Massachusetts Pennsylvania
Physical Chemistry
General
Under the principle of limited government, the government must abide by the law and follow the constitution. This also is called checks and balances the rule of law separation of powers
Physical Chemistry
General
Before a new state could be considered for admission to the United States a had to be created by the state. popular vote state constitution state resolution
Physical Chemistry
General
How do states provide services? Through local governments they establish Through state agencies and programs Through state agencies and programs, and local governments that they establish
Physical Chemistry
General
What is the supreme law of the Land? The President The constitution The Bill of Rights
Physical Chemistry
General
What is public policy? The results of the people's votes Laws regulating society Actions taken by government All of the choices
Physical Chemistry
General
The clause in the United States Constitution that states that the federal laws take president over state laws? Establishment Clause Delegated Powers Clause Supremacy Clause
Physical Chemistry
General
You are hiking in the mountains and find a shiny gold nug- get. It might be the element gold, or it might be "fool's gold,” which is a nickname for iron pyrite, FeS₂. Which of the fol- lowing physical properties do you think would help deter- mine if the shiny nugget is really gold-appearance, melting point, density, or physical state?
Physical Chemistry
General
Name the process for which one is named to seek public office. Nomination Candidacy Voter registration
Physical Chemistry
General
To obtain pure lead, lead (II) sulfide is burned in an atmosphere of pure oxygen. The products of the reaction are lead and sulfur trioxide (SO3). Write a balanced chemical equation for this process. How many grams of lead will be produced if 2.54 grams of PbS is burned with 1.88 g of O₂? Express your answer to the correct number of significant figures. Be sure to show all steps completed to arrive at the answer. (Hint: be sure to work the problem with both PbS and O₂).
Physical Chemistry
General
A referendum allows state citizens to __________ remove previously-elected officials from office vote to approve or reject laws advise the state legislature
Physical Chemistry
General
Read the following lines from "The Tell-Tale Heart." "Villains!" I shrieked, "dissemble no more! I admit the deed! -tear up the planks! Here, here! -It is the beating of his hideous heart!" What does the beating heart symbolize in the excerpt above? The murder of the old man The police identifying the culprit The narrator's guilt
Physical Chemistry
General
Choose the correct answer. is working with others to produce a written work through criticism, feedback, and revision. Collaboration Criticism Feedback
Physical Chemistry
General
What is the nominating process? It is the process of candidate selection. It is the process of candidate representation. The process of party selection.
Physical Chemistry
General
How many amendments were added to the Constitution in 1791? 14 10 9
Physical Chemistry
General
Choose the correct answer. Satire may criticize countries situations people All of the choices
Physical Chemistry
General
ANALYSIS: (In two to three sentences, describe how atomic structure determines reactivity trends in the periodic table.)
Physical Chemistry
General
Identify the tone of the following sentence. Can you help me out with this? Rude Informal Challenging