Arizona State University (ASU) CHM 113 Introductory Chemistry Exam 1 Practice

These questions are part of the practice quiz. Start practicing

• Which element has the symbol Na?
• Which of the following best describes the difference between formula weight and molecular weight?
• Which empirical formula corresponds to mass percentages: C 40%, H 6.7%, O 53.3%?
• Which symbol corresponds to Neon?
• What is the molar mass of CO2?
• Which symbol corresponds to Krypton?
• What is the molarity of a solution made by dissolving 58.44 g of NaCl in enough water to make 1.00 L solution?
• If a liquid has a density of 0.92 g/mL, its density in g/cm^3 is:
• What is the molar mass of water (H2O) approximately?
• Which statement best describes the relative masses of subatomic particles?
• Which statement about molar mass is true?
• Which element has the symbol Ne?
• How do you determine the molar mass of a compound?
• Which element has the symbol Ti?
• What does the atomic number represent?
• Which is a common unit of energy used in chemistry?
• What is the pH of a 0.01 M HCl solution?
• A 25.0 g sample is heated by 5.0 °C with a substance of specific heat capacity 0.50 J/(g·°C). How many joules of heat are absorbed?
• What is the formula for density?
• What is the pH of a neutral solution at 25°C?
• Decomposition reaction description
• Which statement best describes a typical combustion reaction?
• Using the ideal gas law, calculate n for P = 1.00 atm, V = 5.00 L, T = 298 K. (R = 0.082057 L·atm/mol·K)
• What is the SI unit for volume?
• When multiplying or dividing measurements, which rule applies to significant figures?
• Which symbol represents Oxygen?
• Which symbol corresponds to Calcium?
• How many significant figures are in 0.00340?
• Alkaline Earth Metals correspond to which group?
• If the experimental value equals the true value, percent error is:
• Which symbol corresponds to Phophorus?
• What is the standard value for the specific heat capacity of water?
• Which compounds are typically soluble according to common nitrate solubility rules?
• Which symbol represents Argon?
• Which prefix corresponds to 10^-9?
• Which symbol represents Potassium?
• Which value represents Avogadro's number?
• Which element has the symbol Kr?
• Which statement best defines dimensional analysis?
• Which symbol represents Chromium?
• What is the symbol for Carbon?
• Which symbol represents Selenium?
• An isotope has 8 protons and 9 neutrons. What is its mass number?
• In writing formulas for simple ionic compounds, which principle is generally used?
• Arrhenius acid definition
• Which symbol represents Calcium?
• State Dalton's law of partial pressures.
• If a gas mixture contains two gases with partial pressures of 0.60 atm and 0.40 atm, what is the total pressure?
• What is the symbol for Oxygen?
• What is the chemical formula for sodium sulfate, and what is the charge on the sulfate ion?
• At standard temperature and pressure, which statement about gas volume is true?
• What is the definition of chemistry?
• What is the charge of the sulfate ion?
• Avogadro's number is equal to what value?
• Which symbol represents Boron?
• Which option lists the Centi prefix and its power of ten?
• Pico denotes which power of ten?
• What is the chemical formula for aluminum sulfate?
• Metalloids location relative to the metal-nonmetal divide
• What is the sum of the oxidation numbers of all atoms in H2O?
• How is percent error calculated?
• Which statement describes a physical property?
• Which statement best describes a pure substance?
• If the element name is Silicon, what is its symbol?
• How many significant figures are in 120.0 g?
• Which symbol represents Hydrogen?
• What is the purpose of the mole concept?
• Halogens are associated with which group on the periodic table?
• What is an oxidation state?
• What does the prefix Giga represent in scientific notation?
• What is a spectator ion?
• What is a binary compound? Give an example.
• Molarity is defined as which quantity?
• A solution contains 0.15 moles of solute in 0.05 kilograms of solvent. What is the molality?
• Which expression correctly defines percent composition by mass of an element in a compound?
• In H2O, what are the oxidation states of H and O?
• Atomic Number equals number of protons.
• Which quantity is used as the denominator when calculating the mass percentage of an element?
• Where are metalloids typically found on the periodic table?
• Which statement best defines precision?
• Which statement about strong acids and bases is true?
• Which particle carries a negative charge?
• Which particle has a positive charge and a mass of about 1.0073 amu?
• Which statement correctly characterizes noble gases?
• What does Hess's Law state?
• Which group corresponds to Alkali Metals?
• Which option lists the Kilo prefix and its power of ten?
• Which element has the symbol N?
• Which symbol corresponds to Gallium?
• What is the name of the element with symbol Zn?
• Which prefix corresponds to 10^-1?
• Which of the following is NOT a phase change?
• Which element has the symbol Mg?
• According to the law of constant composition for compounds, a compound will always consist of two or more what?
• Which statement best reflects Dalton's Atomic Theory?
• Which of the following is a diatomic molecule under standard conditions?
• Nonmetals reactivity
• What expression represents the ratio of the desired unit to the given unit?
• What is the name of the polyatomic ion NO3−?
• What is the symbol for Arsenic?
• Which element has the symbol Br?
• Which element has the symbol F?
• Metals are predominantly located on which side of the periodic table?
• Convert 0.00500 kilograms to grams.
• How many molecules are in 0.500 moles of H2O?
• How many molecules are in 2.00 moles of H2O?
• Which element has the symbol Fe?
• Which process describes a phase change from a solid directly to a gas?
• What is the molecular weight of O2?
• Covalent bonds are most commonly formed between which types of elements?
• How many significant figures are in 0.0300?
• Which symbol stands for Scandium?
• In chemical reactions, which quantity is conserved?
• Which statement best describes the difference among solids, liquids, and gases in terms of shape and volume?
• Which option lists the Deci prefix and its power of ten?
• Formula Weight is defined as
• If you multiply 12.34 by 0.5, how many significant figures should the product have?
• Which property is independent of the amount of substance present?
• In the reaction A + B -> AB with 1:1 stoichiometry, if you start with 2 moles A and 4 moles B, which is the limiting reagent?
• Which of the following is an example of a chemical property?
• Which of the following is a fundamental SI unit?
• Mass Number is defined as:
• Volume is the length cubed; if the length is in meters, the resulting unit for volume is?
• If symbol is Ga, what is the name?
• How do you name the compound CaCl2?
• How do you calculate the percent by mass of a solute in a solution?
• Which of the following correctly expresses the conversion from Celsius to Kelvin?
• Which element has the symbol Cr?
• Which expression correctly defines density?
• What is a limiting reactant?
• Which of the following is a pure substance?
• Which element has the symbol Ar?
• Which particle has a neutral charge?
• Which symbol corresponds to Phophorus?
• Not a diatomic molecule among options
• Which symbol stands for Germanium?
• Enthalpy is what type of property?
• Which symbol represents Magnesium?
• Which element has the symbol Copper?
• Which symbol represents Zinc?
• Which element has the symbol S?
• If the element name is Arsenic, what is its symbol?
• Which symbol represents Chlorine?
• Which symbol corresponds to Calcium?
• Which expression describes converting from a given unit to a desired unit?
• Which statement correctly defines molar mass?
• If the element name is Boron, what is its symbol?
• The prefix pico denotes which power of ten?
• Write the balanced equation for the combustion of methane.
• Which subatomic particle determines the identity of the element?
• Which value is the ideal gas constant R expressed in L·atm/(mol·K)?
• Which element has the symbol Sc?
• Convert 0.00250 kilograms to grams.
• Which of the following is a noble gas?
• A statement about CH2O as an empirical formula is correct. Which of the following is true?
• In a reaction A + B -> AB with 1:1 stoichiometry, if you start with 2 moles A and 4 moles B, what is the theoretical yield of AB in moles?
• Which symbol corresponds to Manganese?
• Balance the equation: Al + CuSO4 -> Al2(SO4)3 + Cu.
• Which option lists the Micro prefix and its power of ten?
• Which element has the symbol Nickel?
• Arrhenius base definition
• Which option lists the Nano prefix and its power of ten?
• Which symbol corresponds to Vanadium?
• What is the trend for atomic radius as you move down a group in the periodic table?
• Which statement describes a chemical change?
• Write the net ionic equation for the reaction between BaCl2 and Na2SO4 in aqueous solution producing BaSO4.
• Which symbol corresponds to Helium?
• Ionic bonds are formed by which kind of interaction?
• Which symbol represents Lithium?
• Which two quantities are essential to calculate percent composition by mass of an element in a compound?
• Mass Number is defined as:
• Which of the following is a common unit for density in the metric system?
• What distinguishes a pure substance from a mixture?
• Which of the following is an intensive property?
• Which symbol represents Sodium?
• Mass percentage of an element in a compound is calculated with which expression?
• Metals reactivity
• Molecular Weight is defined as
• Which is the correct total mass of NH3 (ammonia) per mole?
• Which statement best defines accuracy?
• Which symbol represents Titanium?
• In combustion, the oxidizer is typically
• Which element has the symbol Al?
• At STP, how many moles are contained in 22.4 L of gas?
• What is the numeric value of the prefix Mega?
• If a compound has an empirical formula CH2O and its molecular formula is C6H12O6, what is the multiple from empirical to molecular?
• Which option lists the Milli prefix and its power of ten?
• Which statement correctly defines density and its common lab units?
• Which term is defined as the sum of the atomic weights for the atoms in a chemical formula?
• A solute with mass 8.0 g is dissolved to form a solution with a total mass of 50.0 g. What is the percent by mass of the solute?
• Which symbol represents Copper?
• In most compounds, the oxidation state of hydrogen is typically +1.
• In the reaction between BaCl2 and Na2SO4 in aqueous solution, which ions are spectator ions?
• What is the Kelvin temperature when the Celsius temperature is 0 degrees?
• For a neutral atom, the number of electrons equals the number of protons.
• Which experiment provided the key evidence for the existence of a small, dense nucleus in the atom?
• A solution contains 0.60 moles of solute in 0.30 kg of solvent. What is the molality?
• What is the mass number of an isotope?
• Which statement best defines theoretical yield?
• How do empirical and molecular formulas differ?
• Which element has the symbol Be?
• How is molality defined?
• The atomic number of an element equals the number of which particle?
• Which of the following is not a pure substance?
• Which symbol represents Beryllium?
• Which of the following is one of the five major branches of chemistry?
• In carbon dioxide (CO2), what is the mass percentage of carbon?
• Which statement NOT true about empirical formulas?
• What is the electron configuration for neutral sodium (Na)?