Other Chemistry Answers

The Keq for the equilibrium below is 7.52*10^-2 at 480.0 C.
2Cl2 (g) + 2 H2O (g) <--> 4HCl (g) + O2 (g)

What is the value of Keq at this temperature for the following reaction?
2HCL (g) + 1/2 O2 (g) <--> Cl2 (g) + H2O (g)


A) 5.66 * 10 ^-3
B) 13.3
C) -0.0376
D) 0.274
E) 3.65

How do the quantum numbers of the shells, subshells, and orbitals of an atom differ?

Aspirin manufactured since 1899 is the most well-known pain killer of our days. The chemical name of the active pain-killing ingredient in aspirin is acetylsalicylic acid.

Formula of aspirin: C9H8O4 (Relative Atomic masses: C = 12, H = 1, O =16) Solubility of acetylsalicylic acid: 1 g / 100 g water at 37oC

a. Calculate in g the mass of one mole of aspirin

The elements to the right of the zigzag line on the periodic table are called

Select one:
a. nonmetals
b. conductors
c. metals
d. metalloids

When heated, KCIO3 decomposes into KCI and O2
2KCIO3 ------------- 2KCI+3O2

If this reaction produced 34.6 of KCI, how much O2 was produced in grams?

When heated KCIO3 decomposes into KCI and O2.
2KCIO3-------2KCI+3O2
If this reaction produced 34.6 g of KCI, how much O2 was produced in grams?

The molecular mass of butanol, C4H9OH, is 74.14; that of ethylene glycol, CH2(OH)CH2OH, is 62.08, yet their boiling points are 117.2 °C and 174 °C, respectively. Explain the reason for the difference.

how does transmutation of chemical elements affect people?
role of transmutation of elements on society?

How many volts does the combustion of ethanol and glucose that provide energy correspond to?

5 Which of the following statements regarding alkanes is not true
a. Alkanes are non-polar molecules
b. Alkanes are soluble in water
c. Alkanes experience dispersion forces
d. Alkanes have low boiling points

15 Hydrocarbons which contains at least ______ benzene ring in their structure is called an aromatic hydrocarbon
a. 2
b. 1
c. 4
d. 3