Chem 101 ivy tech - Study guides, Class notes & Summaries

Chem 101 Midterm Ivy Tech Questions With Complete Solutions 2024 Which of the following is considered a hypothesis (as opposed to an observation)? - - Birds can fly because they have hollow bones Which of the following would be considered a theory? - - Helium balloons float because helium is less dense than air. Which of the statements below is NOT part of the scientific method? - - All of the above steps are part of the scientific method. Which statement about a hypothesis is TRUE? - - ...

Chemistry 101 Midterm Ivy Tech (1-4), Ivytech Chem 101 Midterm 2024/2025 A+ score assured

Chem 101 Midterm Ivy Tech Questions With Complete Solutions. Which of the following is considered a hypothesis (as opposed to an observation)? - - Birds can fly because they have hollow bones Which of the following would be considered a theory? - -Helium balloons float because helium is less dense than air. Which of the statements b

oxidation-reduction (redox) reactions ~ a reaction that involves the transfer of electrons between reactants, many involve the reaction of a substance with oxygen oxidation ~ loss of electrons reduction ~ gain of electrons OIL RIG ~ oxidation is loss, reduction is gain redox reactions are those in which the following occurs: ~ -a substance reacts with elemental oxygen -a metal reacts with a nonmetal -one substance transfers electrons to another substance combustion reactions...

Chemistry 101 Final Exam Ivy Tech Questions And Correct Answers What is the mass percent of hydrogen in water? a: 5.60 b: 11.2 c: 33.3 d: 88.8 - ANSWER : b How many atoms are in 5.80 moles of He? a: 3.49 × 10^24 b: 6.02 × 10^23 c: 1.03 × 10^23 d: 4.00 - ANSWER : a What is the value of n when the empirical formula is C3H5 and the molecular mass is 205.4 g/mol? a: 10 b: 0.02 c: 140 d: 5 - ANSWER : d How many atoms are in 15.6 grams of silicon? a: 0.555 b: 3.34 × 10^23 ...

Suppose a vodka martini contains 30% alcohol with the remaining portion of the drink composed of water. What is the solute in this type of martini? ~ alcohol You need to prepare 2.00 L of 0.100 M Na2CO3 solution. The best procedure is to weigh out: ~ 21.2 g Na2CO3 and add water until the final solution has a volume of 2.00 L How many grams of LiF would be present in 575 mL of 0.750 M LiF solution? ~ 11.2 What is the molarity of a solution prepared by dissolving 10.7 g NaI in 0.250 L...

Chemistry 101 Ivy Tech Exam Review A+ Score Assured 2024/2025 Chemistry is the study of Correct Answer: the properties and behaviors of matter Matter is .. Correct Answer: the physical material of the universe, it is anything that has mass and occupies space A property is Correct Answer: any characteristic that allows us to recognize any type of matter and to distinguish it from other types Matter is typically found as a Correct Answer: mixture of two or more substances; it is compri...

What are the coefficient for the following reactions when it is properly balanced? ___O2+___CH4----> CO2 + H2O ~ 2,1,1,2 Which of the following everyday substances does NOT typically contain an acid? ~ Soap What type of reaction is the generic equation A+BC----> AC+B ~ Single displacement A precipitate is excited to be formed when an aqueous solution of sodium sulfate is added to an aqueous solution of: ~ Barium chloride Which of the following is NOT typically a sign of a...

Chemistry 101 Latest Exam With Verified Answers 2024|2025 Strong Acids Correct Answer: undergo complete ionization: HI HBr HCl HNO₃ HClO₃ HClO₄ H₂SO₄ Strong Bases Correct Answer: do not undergo complete ionization: KOH NaOH LiOH CsOH RbOH Ba(OH)₂ Ca(OH)₂ Sr(OH)₂ Strong Electrolytes Correct Answer: conduct electricity and undergo complete dissociation: HCl HNO₃ HClO₄ H₂SO₄ NaOH Ba(OH)₂ Weak Electrolytes Correct Answer: conduct some electr...