Do the number of protons in an atom of an element always equals its atomic weight.

If 1.00 mol of CS2 is combined with 1.00 mol of O2, identify the limiting reactant

For the reaction: n2 (g) + 3h2 (g) ⇔ 2nh3 (g), at a particular temperature, the concentrations of n2, h2 and nh3 are 2.1 x 10-3 m, 3.2 x 10-2 m, and 1.8 x 10-1 m, respectively. calculate a value of k for this reaction

A chemist pumps hydrogen gas (h2) from a tank into a reaction vessel containing 0.734 mol o2. the gases react to form water. if all of the available o2 reacts, how many moles of h2 are used?

Which best describes a force? a vector with magnitude and direction a vector with speed and strength a vector with direction only a vector with strength only Mark this and retum Save and Exit Next Submit

Name two ways in which all hydrocarbons are alike?

A. List three things that your body strives to keep constant. (example metabolism) B. Describe one way in which each of the items you listed in Part A could be at least temporarily disrupted from equilibrium.

Part I Complete and balance the following equation: NO-2 (aq) + Al (s) →NH+4 (aq) + AlO-2 (aq) (basic solution)

A 425.00-gram sample of a compound decomposes into 196.01 grams of carbon, 41.14 grams of hydrogen, 130.56 grams of oxygen, and 57.29 grams of silicon. Experiments have shown the compound has a molecular weight of 208.329.

What characters do all minerals share

Which type of photons in the electromagnetic spectrum contain the least amount of energy?