The two different compounds [Cu(NH_(3))_(4)][Fe(CN)_(4)(H_(2)O)_(2)] and [Cu(CN)_(4)] [Fe(NH_(3))_(4)(H_(2)O)_(2)] are examples of: optical isomers linkage isomers coordination isomers ionization isomers geometric isomers
How many grams of water are made from the reaction of 16.0 grams of oxygen gas? Given the reaction: 2H_(2)+O_(2)arrow 2H_(2)O 16 36 18 9 not enough information
Rough Study Guide for Quiz 3 1. Name ionic and covalent compounds 2. Find the molar mass of compounds 3. Where in a reaction are the reactants and products. 4. Significant figures 5. What are the Types of chemical reactions. 6. Be able to draw and identify free body diagrams. 7. Calculate net force. 8. Calculate forces on an incline 9. Newton's first law of motion 10. Use periodic table to find charge of elements. 11. Balance chemical equations 12. What is the difference between mass and weight? 13. Be able to calculate frictional force. 14. Use net force to find net acceleration of an object.
Thinking of the Fire Triangle: There are 5 elements required for a fire to ignite and burn. Select the correct answer. True False
Dissolvem -se 2 g de NaOH em água suficiente para ul litro de solução. A solucão resultante , d 25^circ C apresenta: Selecione uma opção: a pOH=pH b. 2,7 C pH=12,7 d. pH=1,3 e pOH=12,7
Compare and contrast the chemical structures of the four groups of biological molecules (the molecules of life).
The Collision Theory Model describes the following The effects of adding a catalyst Criteria necessary for a reaction to take place How instantaneous a reaction is The relationship between orientation and temperature of reactants
1. Calculate the pH values for the following solutions a) the acid solution with [H^+]=0.002M b) 0.01M HCl aqueous solution c) 0.01 M NaOH aqueous solution d) an aqueous solution with pOH=10.3
Calculate the percent composition of aspirin (C_(9)H_(8)O_(4))
What is the formula mass of aspirin (C_(9)H_(8)O_(4))
$2N_{2}O_{5}(aq)\rightarrow 4NO_{2}(aq)+O_{2}(g)$ Which choice represents the relative rate expression between $N_{2}O_{5}$ and $NO_{2}$ ? 1 $Rate=-\frac {1}{2}\frac {\Delta [N_{2}O_{5}]}{\Delta t}=\frac {1}{4}\frac {\Delta [NO_{2}]}{\Delta t}$ 2. $Rate=\frac {\Delta [N_{2}O_{5}]}{\Delta t}=\frac {\Delta [NO_{2}]}{\Delta t}$ 3 $Rate=-\frac {1}{4}\frac {\Delta [N_{2}O_{5}]}{\Delta t}=\frac {1}{2}\frac {\Delta [NO_{2}]}{\Delta t}$ 4 $Rate=2\frac {\Delta [N_{2}O_{5}]}{\Delta t}=4\frac {\Delta [NO_{2}]}{\Delta t}$
At high temperatures bromine molecules can dissociate into bromine atoms. For the reaction $Br_{2}(g)\rightleftharpoons 2Br\cdot (g)$ $K_{p}=2.48\times 10^{-3}$ at $1650^{\circ }C$ A 5.00 L vessel at $1650^{\circ }C$ is filled with $Br_{2}(g)$ at an initial pressure of 6.00 atm and allowed to come to equilibrium. What will be the pressure (in atm) of $Br\cdot (g)$ at equilibrium?
The boiling point of bromine is $59^{\circ }C$ Which of the following best predicts the boiling point of iodine monochloride, a polar compound? Higher than $59^{\circ }C$ because dipole-dipole interactions in iodine monochloride are stronger than dispersion forces in bromine. Lower than $59^{\circ }C$ because ionic bonding in bromine is stronger than covalent bonding in iodine monochloride. Lower than $59^{\circ }C$ because dipole-dipole interactions in iodine monochloride are weaker than in bromine. Higher than $59^{\circ }C$ because ionic bonding in iodine monochloride is stronger than H-bonding in bromine.
Under certain conditions the rate of this reaction is zero order in ammonia with a rate constant of $0.0026M\cdot s^{-1}$ $2NH_{3}(g)\rightarrow N_{2}(g)+3H_{2}(g)$ Suppose a 300. mL flask is charged under these conditions with 450.mmol of ammonia. How much is left 100 s later? You may assume no other reaction is important. Be sure your answer has a unit symbol,if necessary, and round it to the correct number of significant digits. $\square $
Cleaning chemicals are generally not health hazards True False
Identify the molecule or molecules containing polar covalent bonds. HF CsF $Br_{2}$ KH $N_{2}$
A saturated solution holds the maximum amount of solute under the solution conditions. True False
Copper, a good conductor, has __ electron(s) in its valence shell. a. 1 b. 3 c. 4
To identify a chemical's hazards, check its: Smell Color MSDS
A 0.788 mole sample of ideal gas at $12^{\circ }C$ occupies a volume of 4.25 L. What is the pressure of the gas? $\square $