In the modern quantum-based atomic theory, what is the name given to a particular space around the nucleus in which an electron moves?

A. orbit

B. nucleus

C. energy level

D. orbital

Why does a neutral solution have a of 7.0? In a neutral solution, the [H3O+]=1*10^-7 at 25∘C. pH=-log[1*10^-7]=7.0. In a neutral solution, the [H3O+]=1*10^7 at 25∘C. pH=log[1*10^7]=7.0. In a neutral solution, the [H3O+]=1*10^14 at 25∘C. pH=0.

Predict what must happen when a beaker containing a solution of lithium chloride is heated. check all that apply. view available hint (s) check all that apply. energy will be transferred into the system. the δh3 value will increase.

Which is the FALSE statement about Na+? A. It is a cation. B. It is an anion. C. It has lost an electron. D. It has fewer electrons than protons.

Newton's Second Law of Motion is F = ma. Closely related to this is Hooke's Law, F = - kx, which describes the force needed to restore the displacement of a "rigid" body, such as a spring.

An automobile tire at 30°C has a pressure of 3.00 atm. Temperature decreases to - 5°C. Assume that there is no volume change in the tire.

In an open system, the vapor pressure is equal to the outside air pressure. T or F?

Could acetic acid be used in the esterification, instead of acetyl chloride? Why or why not?

9. In a sample of gas, what causes pressure? Answer in a completesentence.

Sodium (Na) reacts with chlorine gas (Cl2 ) to form sodium chloride (NaCl) as shown in the equation: 2Na + Cl2 → 2NaCl If 4 moles of chlorine gas react, how many moles of sodium will react?

What are transuranium elements properties?