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What is released first when the action potential arrives to the neuromuscular junction?

A green laser pointer has a wavelength of 532 nm. What is the energy of one mol of photons generated from this device?

Magnesium burns in air with a dazzling brilliance to produce magnesium oxide:                         2Mg(s) + (g) → 2MgO(s)When  3.00 g of magnesium burns, the theoretical yield of magnesium oxide is ________ g.

Does this look familiar?   Learning Activities

Lead (II) carbonate decomposes to give lead (II) oxide and carbon dioxide:  How many grams of lead (II) oxide will be produced by the decomposition of 2.50 g of lead (II) carbonate?

Give the symbol for magnesium.

Determine the velocity of a medicine ball (m = 10.0 kg) with a wavelength of 1.33 × 10-35 m.

One of the classic ways of defining a gas in comparison to, for example, a solid, is that the gas expands to fill all of the space in its container, whereas the solid has a fixed shape and dimension. Among the following, which represent a molecular-level explanation for this different behavior of a gas and a solid?

An element has three stable isotopes with masses of 27.977 amu, 28.976 amu, and 29.973 amu. The heavier two isotopes have an abundance of 4.68% and 3.09%, respectively. What is the mass of the element? (Hint: There is 100% total for all three)