2ca(s)+o2(g) → 2cao(s) δh∘rxn= -1269.8 kj; δs∘rxn= -364.6 j/k

After completing Volare!, Loyal has disappeared. He isn't in his home, nor is he in the hanger. I've looked all around Nellis, and he is nowhere to be found. Any help you can give is appreciated. 4 Answers let me... Read more

my crush gives me the head to toe looks a lot. do any of you know what it actually mean when a guy does that? he even stare, glance and looks at me a lot too. 32 Answers a sign... Read more

I'm 15 and have 3 shifts this weekend, and I want to quit before I do any of them. I don't care about reference and I just want to leave it in anyway I can. Should I just drop in... Read more

I bought organic grass fed ground beef from whole foods, and it literally smelled like cheese. I made hamburgers and it no longer smelled but had a mild taste of an aged cheese, like Parmesan or something. Is this normal... Read more

The Kb of pyridine, C5H5N, is 1.5 x 10-9. Calculate the pH of a solution of 0.157 M pyridine. Work Plz. THANKS! 3 Answers C5H5N in water --> C5H5NH+ & OH- Kb = [C5H5NH+] [OH-] / [C5H5N] 1.5e-9 = [x]... Read more

1. Es ridículo que tú ______ (tener) un resfriado en verano. 2. Me molesta que mis padres no ______ (cuidar) su alimentación.. 3. No creo que Susana _____ (seguir) sobre los consejos de su médico. 4. Mi hermana se sorprende... Read more

N-F C-F Cl-F F-F 2 Answers C-F is the most polar. You can find the polarity of a compound by finding electronegativities (an atom's desire for an electron) of the atoms; Carbon has an electronegativity of 2.5, compared to Fluorine's... Read more

A) Enter the the Ksp expression for the solid AB2 in terms of the molar solubility x. Express your answer in terms of x. For example: 7*x^2. B)Enter the the Ksp expression forC2D3 in terms of the molar solubility x.... Read more