Chem101 Study guides, Study notes & Summaries

total number of neutrons and protons in an atom; # protons + # electrons Mass Number Most nonmetallic elements are found in which block of the periodic table? p Ernest Rutherford disproved J.J. Thomson's plum-pudding model of the atom by showing that... Positive matter is concentrated in the central core Plants use up copious amounts of which alkali metal, preventing most of it from being washed out to sea? Potassium What is the ratio of reactants and products in the chemical equation? _...

Potassium chlorate (used in fireworks, flares, and safety matches) forms oxygen and potassium chloride when heated. KClO3(s) → KCl(s) + O2(g) [unbalanced] What mass of oxygen gas is formed if 26.4 g of potassium chlorate decomposes completely? Select one: A. 6.86 g B. 99.1 g C. 4.60 g D. 10.3 g E. 223 g My Account Question 2 Correct 5.00 points out of 5.00 Question 3 Correct 5.00 points out of 5.00 Ammonia reacts with diatomic oxygen to form nitric oxide and water vapor as ...

Which species will have the greatest absolute entropy at 25°C? Select one: A. C4H10(g) B. H2O(l) C. C2H5OH(l) D. C2H2(g) E. Ne(g) Which is a statement of the second law of thermodynamics? Select one: A. The energy of the universe is constant. B. The energy of the universe is decreasing. C. The entropy of the universe is increasing. D. The enthalpy of the universe is constant. E. The entropy of the universe is constant. My Account Question 3 Correct 5.00 points out of 5.00 Que...

Straighterline CHEM101 Final Exam Test Completely Answered

Straighterline CHEM101 Final Exam With 100% Correct Answers 2023

STRAIGHTERLINE CHEM101 FINAL EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+STRAIGHTERLINE CHEM101 FINAL EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+

What are the units of the constant a in the van der Waals equation? Select one: A. atm B. L • atm/K • mol C. L/mol D. L2 • atm/mol2 What is the final temperature of a gas that expands from a volume of 22.4 L at 278 K to a volume of 38.3 L at constant pressure? Select one: A. 163 K B. 3.09 K C. 475 K D. 294 K E. 217 K My Account Question 3 Correct 5.00 points out of 5.00 Question 4 Correct 5.00 points out of 5.00 Question 5 Correct 5.00 points out of 5.00 A sample...

Straighterline CHEM101 Final Questions & answers

Mass Number - correct answer -total number of neutrons and protons in an atom; # protons + # electrons p - correct answer -Most nonmetallic elements are found in which block of the periodic table? Positive matter is concentrated in the central core - correct answer -Ernest Rutherford disproved J.J. Thomson's plum-pudding model of the atom by showing that... Potassium - correct answer -Plants use up copious amounts of which alkali metal, preventing most of it from being washed out to se...

Straighterline CHEM101 Final with complete solution