The change in energy represented by a thermochemical equation is always

If I give my teacher chocolate, then she will give me less homework because she will be happier

Does more precipitation occur over oceans or over land? Explain

Why are the electrons in a nitrogen-phosphorus covalent bond not shared equally? which atom do the electrons spend more time around?

How many significant figures are contained in each of the following measurements? (a) 53 cm (b) 2.05 x108 m (c) 86,002J (d) 9.740 x 104 m/s (e) 10.0613 m3 (f) 0.17 g/mL (g) 0.88400 s

Give the characteristic of a zero order reaction having only one reactant. a. The rate of the reaction is not proportional to the concentration of the reactant. b.

In 1993 the Minnesota Department of Health set a health risk limit for chloroform in groundwater of 60.0 g/L Suppose an analytical chemist receives a sample of groundwater with a measured volume of 79.0 mL.

A good way for someone to identify similar substances is to measure their densities true or false

At 25 ∘c, kp = 25 for the reaction h2 (g) + i2 (g) ⇌2hi (g). at equilibrium, the partial pressure of both h2 and i2 is 0.296 atm. what is the partial pressure of hi at equilibrium?

In a resonant hybrid of a molecule like CH3CO2-, how are the electron orbitals of the carbon in CO2 sp hybridized?

Consider the formation of nitrogen dioxide and oxygen: NO (g) + O3 (g) ⇌NO2 (g) + O2 (g) The reaction is first order in O3 and second order overall.