Al (s) + hcl (aq) → alcl3 (aq) + h2 (g). assume you have plenty of hcl and 6.0 mol of al. how many moles of h2 are formed?

What does contact forces and non-contact forces mean?

Consider an acetate buffer, initially at the same pH as its pKa (4.76). When a large quantity of sodium hydroxide (NaOH) is mixed with this buffer, the: A) pH remains constant.

Column chromatography is based on the principle of

A catalyst lowers the activation energy for both the forward and the reverse reactions in an equilibrium system, so it has no effect on the equilibrium position of a system. True False

Why is hydrogen a non-metal?

Compound a has a molecular formula c5h12, and monobromination of compound a produces only compound b. when compound b is treated with a strong base, a mixture is obtained containing compound c and compound d.

Ip a gas has a temperature of 310 k and a pressure of 100 kpa. part a find the volume occupied by 1.20 mol of this gas, assuming it is ideal.

When Dmitri Mendeleev published his periodic table of the elements in 1869, there were 59 known elements. Today there are 118 known elements.

What are some types of thermometers?

The following values are the only allowable energy levels of a hypothetical one-electron atom: E₆ = - 2 x 10⁻¹⁹ J E₅ = - 7 x 10⁻¹⁹ J E₄ = - 11 x 10⁻¹⁹ J E₃ = - 15 x 10⁻¹⁹ J E₂ = - 15 x 10⁻¹⁹ J E₁ = - 15 x 10⁻¹⁹ J (a) If the electron were in the n =