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louren
Questions and answers by visitors named
louren
Questions (16)
Among the following Ka values, which represents the strongest acid?
A. Ka = 1.2 x 10-3 B. Ka = 3.4 x 10-5 C. Ka = 8.7 x 10-8 D.
4 answers
4,435 views
Which of the following is the correct expression for the rate of the following reaction? Note: not all species are gaseous.
CuO(s
5 answers
793 views
In which of the following physical states does a given substance have the highest entropy?
A. solid B. gas C. liquid D. all of
3 answers
877 views
Which for the following is considered a weak base?
A. Lithium hydroxide B. Aluminum hydroxide C. Sodium hydroxide D. Calcium
2 answers
1,280 views
How would you classify a solution if [OH-] = 4.2 x 10-8 M?
A. Acidic B. Basic C. Neutral D. It is impossible to tell based on the
4 answers
2,364 views
What is occurring in the following reaction?
H2 + Cl2 → 2HCl A. H2 is being reduced. B. Cl2 is being oxidized. C. H2 is gaining
6 answers
4,691 views
The element oxidized in the reaction described in PbO2 + 4HCl → 2H2O + PbCl2 + Cl2 is
A. Pb. B. O. C. H. D. Cl. would the
2 answers
1,306 views
A radioactive isotope of radium (Ra-226) has a half-live of 1620 years. How much of this isotope remains after three (3)
1 answer
661 views
What number is missing from this nuclear equation?
? 13Al + 1 0n --> 28 13Al A. 28 B. 41 C. 29 D. 27 would this be D? please
1 answer
459 views
Which of the following is NOT true about a nuclear power plant?
A. They can explode like a nuclear bomb. B. They produce
2 answers
944 views
Magnesium nitride is formed in the reaction of magnesium metal with nitrogen gas in this reaction: 3 Mg(s) + N2(g) --> Mg3N2(s)
H
4 answers
1,726 views
Experimental Design: From the work you have done this semester, choose a topic and design an experiment you would be able to
4 answers
1,489 views
You have two sealed jars of water at the same temperature. In the first jar there is a large amount of water. In the second jar
1 answer
470 views
If 5.40 kcal of heat is added to 1.00 kg of water at 100⁰C, how much steam at 100⁰C is produced? Show all calculations
1 answer
589 views
What is the oxidation number of chlorine in Al(ClO4)3?
I don't understand this question, can someone help? Thank you!
5 answers
5,477 views
Verify that sec(θ)/csc(θ)-cot(θ) - sec(θ)/csc(θ)-cot(θ) = 2csc(θ) is an identity.
please help! thank you!
2 answers
510 views
Answers (2)
sorry .-. I don't understand
Oh, wait, would it be like a chemical experiment I'm supposed to design, like "mix water with this medicine and explain what happens" or something?
