chemistry

Chemistry exam 3questions and answers Graded A+ Addition of a reactant or removal of a product will cause... - Forward reaction Removal of reactant or addition of product will cause... - Reverse reaction For an exothermic reaction, adding heat would... - Shift towards reactants For an exothermic reaction, chilling would... - Shift toward products For an endothermic reaction, adding heat would... - Shift toward products For an endothermic reaction, chilling would... - Shift toward...

Chemistry 1AA3 Midterm 2Exam questions and answers Graded A+ What is a zero order reaction? - Vo is independent of concentration of A What does the graph look like for a zero order reaction? - Flat line What is the reaction rate equation for a zero order reaction? - Vo=k What are the rates for k in a zero order reaction? - M/s What are zero order processes? - evaporation/ sublimation with constant surface area What is a pseudo zero-order reaction? - reaction where catalyst or enz...

Chemistry 1A Final Exam Review questions and answers Graded A+ How many sig-figs in 1.5? - 2 How many sig figs in 1.05? - 3 How many sig figs in 0.001050? - 4 How many sig figs in 150 - Exact number. How many sig figs in 0.04450? - 4 How many sig figs in 10dm=1m? - 2 on the left, 1 on the right; Exact number/measurement. How many sig figs in 1.000 x 10^5? - 4

Chemistry 1 Final Exam, things to remember questions and answers Graded A+ 1 mole equals=... molecules, particles, or atoms - 6.02*10²³ How to find empirical formula? - - convert each percentage to grams, assuming 100 g of the compound - convert the mass of each element from grams to moles - express the mole ratio as whole numbers. - divide by smallest subscript How to convert Empirical formula to Molecular formula? (Molar mass of molecular formu

CHEM FINAL 1AA3 PRACTICE EXAM questions and answers Graded A+ Which statement about propadiene, H2C=C=CH2, is false? There are two π bonds oriented at 90° to one another. There are six σ bonds in this molecule. None of the carbon atoms are sp3-hybridized. All the carbon atoms are sp2-hybridized. - D total, how many carbon atoms are sp2 hybridized?Capsaicin (C18H27O3N) is the molecule responsible for the spiciness of chili peppers. It contains C-C single bonds and C=C double ...

CHEM 3010 Spring 2026questions and answers Graded A+ What is the typical chemical shift range for aromatic carbons in NMR spectroscopy? 110-160 ppm What does an even molecular ion mass indicate regarding nitrogen content in Mass Spectrometry? An even number of nitrogen atoms What does an odd molecular ion mass indicate regarding nitrogen content in Mass Spectrometry? An odd number of nitrogen atoms What information does the thermodynamics of a reaction provide? Whether a ...

Chem 1305 Exam 1questions and answers Graded A+ hypothesis - testable assumption theory - well-tested explanation that unifies a broad range of observations H20 - water NH3 - ammonia CH4 - methane H2O2 - hydrogen peroxide H3O+ - Hydronium NH4+ - Ammonium

Chem 1212 Lab Practical questions and answers Graded A+ When making ice cream, where is heat transferred from and where is it transferred to? - from ice cream mixture to ice and rock salt What colligative property is displayed by making ice cream? - freezing point depression Why is salt added to ice when trying to facilitate freezing point depression? - because the solution freezes at a lower temperature than water T/F: Colligative properties depend only on the number and not the...

Chem 111 Exam 1questions and answers Graded A+ Mass - kilogram (kg) length - meter (m) Time - Seconds (s) Temperature - Kelvin (K) Amount of substance - mole (mol) Electric Current - ampere (A) Luminous intensity - candela (cd

CHEM 103 FINAL EXAM questions and answers Graded A+ Lewis Structures - represents the transfer or the sharing of electrons in chemical bonds octet rule - EVERY ATOM WANTS 8 ELECTRONS IN THEIR OUTERSHELL ionic bonding - chemical bond formed through the transfer of one or more electrons from one atom or group of atoms to another group EX : NaBr metals - give nonmetals - take