In a chemical reaction you collect 1000 mL of hydrogen gas at STP how many moles of hydrogen gas did you collect

0.02

0.04

0.004

0.002

Use the tabulated half-cell potentials to calculate the equilibrium constant (K) for the following balanced redox reaction at 25°C. 2Al (s) + 3Mg2 + (aq) ® 2 Al3 + (aq) + 3Mg (s)

Why do the two elements silver an iron have different properties

If the velocity profile of a fluid emerging from a control surface varies with surface area, the control volume form of the momentum equation can be used. (T/F)

Describe the structure and bonding in graphite.

In the equation below, which of the following is not true? 3 Br2 + 2 Ga 2 GaBr3 Bromine gas is being reduced. Gallium is the catalyst. Ga is the reducing agent. Gallium is gaining electrons.

Consider the compounds 4-tert-butylcyclohexanol and 4-tert-butylcyclohexanone. using silica gel plates, which of the two compounds will have the higher rf value when ethyl acetate is the developing solvent?

Which model of election configuration is the most accurate? The quantum mechanical atomic model The Rutherford atomic model The Bohr atomic model O Plum pudding atomic model The quantum gravity atomic model

How is the rate of appearance of h2o related to the rate of disappearance of o2?

Occurs when the moon moves between the Earth and Sun and blocks the light

Why have some chemicals been banned from usage in agriculture/food production