What is defined as anything made up of atoms that has mass and takes up space? a. molecules b. alloys c. matter d. mixtures

What term describes elements with properties that fall between those of metals and nonmetals?

Choose the incorrect answer below concerning absolute zero. a) lowest possible temperature b) theoretical temperature at which gas molecules have no kinetic energy c) is equal to 0°c d) is equal to 0 k

3. What effect does dark energy have on the universe?

What mass of silver oxide, ag2o, is required to produce 25.0 g of silver sulfadiazine, agc10h9n4so2, from the reaction of silver oxide and sulfadiazine?

The reaction A → products is first order. If the initial concentration of A is 0.646 M and, after 72.8 seconds have elapsed, the concentration of A has fallen to 0.0146 M, what is the rate constant of the reaction?

Describe the composition of a lead storage battery

A 5.0g sample of aluminum with a specific heat of 0.90 j/g was heated from 22.1^c to 32.1^c. How much heat to the nearest joule did the aluminum gain?

How many moles of HI are present at equilibrium when 2.0 moles of H2 is mixed with 1.0 moles of I2 in a 0.50 L container and allowed to react at 448oC. At this temperature K = 50.

A laboratory manual gave precise instructions for carrying out the reaction described by the chemical equation, C2H6O + O2 C2H4O2 + H2O.

2Al (s) + 3Pb (N03) 2 (aq) 2Al (N03) 3 (aq) + 3Pb (s) How many molecules of Pb (N03) 2 are used in the reaction? How many oxygen atoms are used in the reaction? How many moles of Al (N03) 3 are formed?