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Questions Asked on June 15, 2018

For the following reaction, the partial pressures are listed in the table:Substance Equlibrium H2S 5.4 I2 1.2 HI 0.43 S 7 If the
1. 6 answers
2. asked by jenny
3. 2,778 views
If the reaction between H2 and I2 to form HI were at equilibrium and an additional 0.25 moles of H2 were added to the reaction,
1. 2 answers
2. asked by HQade
3. 2,447 views
A student prepares a 0.28 M solution of acetic acid. If the Ka of the acid is 1.76 x 10^-5, then what is the pH of the solution?
1. 1 answer
2. asked by HQade
3. 2,545 views
For the second order reaction:A -> products the plot of what term versus time would yield a straight line? 1/[A] ln[A]/[A] [A]
1. 3 answers
2. asked by HQade
3. 2,176 views
When the pH of a buffer is equal to its pKa, what is the amount of dissociation that has occurred?1 % 25 % 50 % 100 %
1. 2 answers
2. asked by HQade
3. 1,690 views
Calculate the ph during the titration of 20.0ml 0.5000M ethanoic acid Ka=0.0000175 with 0.500M NaOH after the addition of 0.0ml
1. 1 answer
2. asked by Anonymous
3. 739 views
A weak acid with an initial pH of 3.2 was titrated with a strong base. 15 mL of 0.1 M NaOH was added to the acid to reach the
1. 1 answer
2. asked by Jason
3. 542 views
Given the enthalpy reactions below,2 X + O2 → 2 XO ΔHrxn = -1301.8 kJ/rxn XCO3 → XO + CO2 ΔHrxn = 169.7 kJ/rxn What is the
1. 1 answer
2. asked by kenzie
3. 635 views
Determine whether the conjecture is true or false. If false, give a counterexample.Given: ∠A is supplementary to ∠B and ∠B
1. 1 answer
2. asked by homework
3. 2,970 views
Doesn't a diploid cell has 46 chromatids and duplicate in to 92 chromotids?why do people say 46 chromosomes in a deploid cell?
1. 1 answer
2. asked by Science
3. 758 views
2 C6H6 + 15 O2 → 12 CO2 + 6 H2O ΔHrxn = 6542 kJ/rxnIf 8.88 g of C6H6 (FW = 78.114 g/mol) is burned and the heat produced from
1. 1 answer
2. asked by kenzie
3. 1,048 views
2 Fe2O3 → 4 Fe + 3 O2 ΔHrxn = 824.2 kJ/rxnHow much heat will occur in the decomposition of 72.7 g of Fe2O3 (FW: 159.687
1. 1 answer
2. asked by kenzie
3. 596 views
There are 2.2 pounds in one kg.If Mary Catherine has 2.5 kg hamburger meat for her cookout ,how many pounds of hamburger meat
1. 2 answers
2. asked by Ja'Quavius
3. 667 views
The foot of an extension ladder is 9ft from a wall. The height that the ladder reaches on the wall and the length of the ladder
1. 2 answers
2. asked by Ethan
3. 1,699 views
What is the standard reduction potential for the half-reaction Li = Li+ + e- ?
1. 0 answers
2. asked by Student
3. 797 views
Simplify :1/1-cosx +1/1+cos x
1. 1 answer
2. asked by Anne
3. 708 views
What were the principle sources of outrage that fueled the protests against the Vietnam War?Multiple answer, select all that
1. 6 answers
2. asked by Kate
3. 5,314 views
Of 20 girls 16 plays hockey,12 plays tennis and 4playsbusket every girl plays at least one game and 2plays all the three games
1. 7 answers
2. asked by Alice
3. 2,738 views
A plane flies northward for 430km, it then flies eastwards for 380km.How far is it from the starting point?
1. 3 answers
2. asked by DUKE
3. 537 views
Why Is It Important to Beowulf's Image As An Epic Hero That He Faced Grendel Without A Weapon?A.)Grendel Is The Embodiment Of
1. 3 answers
2. asked by Joshua
3. 1,277 views
Sofa is on sale for 28% off. Sale price is $666.00. What is regular price?
1. 2 answers
2. asked by Lisa
3. 1,056 views
Which analyzes why some historians believe that the federal civil defense administration used propaganda to reduce the general
1. 5 answers
2. asked by Kate
3. 1,861 views
which suggest reasons that President Kennedy decided to use US military intervention in Cuba?Multiple choice, select all that
1. 3 answers
2. asked by Kate
3. 1,510 views
Why did President Ronald Regan support funding The Nicaraguan rebels with money made from selling weapons to Iran?1. The selling
1. 4 answers
2. asked by Kate
3. 4,031 views
Which option explains why the United States was interested in the internal politics of countries such as Chile and Nicaragua
1. 4 answers
2. asked by Kate
3. 5,805 views
1. The shoe store is to the left of the arcade.2. The shoe store is on the left of the arcade. [Can we use both 'to' and 'on' ?
1. 1 answer
2. asked by rfvv
3. 436 views
A football is kicked at an angle of 45° to the horizontal over a defence line up with a velocity of 15m/s. Calculate the
1. 2 answers
2. asked by Ray
3. 1,574 views
What is the endocrine system for.
1. 1 answer
2. asked by Jack
3. 471 views

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