louren

Which of the following is the correct expression for the rate of the following reaction? Note: not all species are gaseous. CuO(s) + H2S (g) <--> Cu(s) + H2O (g) A. [Cu] x [H2O] / ([CuO] x [H2S]) B. [H2O] / [H2S] C. [CuO] x [H2S] / ([Cu] x [H2O]) D. None...

In which of the following physical states does a given substance have the highest entropy? A. solid B. gas C. liquid D. all of the above would this be A?

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. Ka = 5.8 x 10-10 would the answer be A? please explain, don't just give me the answer.

Which for the following is considered a weak base? A. Lithium hydroxide B. Aluminum hydroxide C. Sodium hydroxide D. Calcium hydroxide would this be C? please explain

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 information given would it be B? please explain

What is occurring in the following reaction? H2 + Cl2 → 2HCl A. H2 is being reduced. B. Cl2 is being oxidized. C. H2 is gaining two electrons. D. Cl2 is acting as an oxidizing agent. is the answer C? please explain

The element oxidized in the reaction described in PbO2 + 4HCl → 2H2O + PbCl2 + Cl2 is A. Pb. B. O. C. H. D. Cl. would the answer be A? please explain

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 explain, thank you!

Which of the following is NOT true about a nuclear power plant? A. They can explode like a nuclear bomb. B. They produce radioactive waste that must be safely stored for many years. C. They produce fewer carbon emissions than a coal-fired power plant. D....

Magnesium nitride is formed in the reaction of magnesium metal with nitrogen gas in this reaction: 3 Mg(s) + N2(g) --> Mg3N2(s) How many grams of product are formed from 2.0 mol of N2 (g) and 8.0 mol of Mg(s)? i havent been able to figure this one out, ca...

Experimental Design: From the work you have done this semester, choose a topic and design an experiment you would be able to perform. In your design (1) state your hypothesis, (2) identify your dependent and (3) independent variables, (4) your control con...

What is the oxidation number of chlorine in Al(ClO4)3? I don't understand this question, can someone help? Thank you!

Verify that sec(θ)/csc(θ)-cot(θ) - sec(θ)/csc(θ)-cot(θ) = 2csc(θ) is an identity. please help! thank you!

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?

sorry .-. I don't understand