Which of the following is the best instrument to use to prepare a solution?

If you rub a balloon on a piece of fabric or carpeting and then hold it against your head, your hair can stand on end. Why?

What statement is MOST accurate about a chlorine ion? A) The chlorine ion is a result of chlorine's relatively low electronegativity. B) The ionic radius of a chlorine ion is larger than the radius of a chlorine atom.

How many moles of KCl will be formed from 2.73 grams of KClO3

Which statement about the relationship between laws, hypotheses, and theories is true? A. Laws that remain true over an extended period of time are considered theories. B. A theory that holds true for a long time is considered a law. C.

According to the graph, which statement is true? The atmosphere is composed of only four gases. Argon and carbon dioxide are represented in equal proportions. Nitrogen is the most abundant. Oxygen is the most plentiful gas

If I have 1.9 moles of gas held at a pressure of 5 atm and in a container with a volume of 50 liters, what is the temperature of the gas?

A student measured 1.0 kcal when the student combined 99.7 mL of 3 M HCl with 100 mL of 3 M NaOH. Given that the reaction is HCl (aq) + NaOH (aq) → NaCl (aq) + H2O what was ΔHneutralization per mole of water?

Which is the odd one brass, copper, aluminum, iton, sapphire

What best describes the collisions between ideal gas molecules?

Select the atoms whose ions have an electron configuration of n d 6 (n = 3, 4, 5 ...). For example, the 2 + ion for V ends the electron configuration with 3d 3. Check all that apply. Tl Rh Fe Os Lu Ti