When a substance cannot be reduced by physical or chemical means to a simpler form, it is an example of a (n):

mixture

molecule

element

compound

The equilibrium constant, Kp, for the following reaction is 9.52*10-2 at 350 K: CH4 (g) + CCl4 (g) 2CH2Cl2 (g) Calculate the equilibrium partial pressures of all species when CH4 and CCl4, each at an intitial partial pressure of 1.

A scientist observes several metals and records the followinv data. which of the data sets represents qualitative data? A The máss of the metals B The volume de the metal C the softness de the metal D the color of the metals

Which substance is classified as an arrhenius base

He substance, cocl2, is useful as a humidity indicator because it changes from pale blue to pink as it gains water from moist air. What is its name?

What is the function of the swim bladder in a fish?

What is the mass (in grams) of 8.45 x 1023 molecules of dextrose: C6H12O6 (Mw. 180.16 g/mol) ?

How do the number and kind of atoms in the reactants compare to the number and kind of atoms in the products

Scientists conduct experiments to collect evidence. Which of the following is the best definition of the word experiment as used by scientists?

The compound HCI is an example of a (n) A. covalent compound B. ionic compound C. element D. salt

Is the degree of highness or lowness of sound