The majority of elements found in the periodic table can be classified as what

Describe a main goal of primary treatment in a modern sewage treatment plant.

assuming oxygen behaves like an ideal gas, what volume in liters would 3.50 moles of oxygen gas occupy at STP?

During radioactive decay, atomic nuclei of unstable isotopes a. give off nuclear radiation. b. are broken down by radioactive bacteria. c. form chemical bonds. d. are unchanged.

How many valence electrons does chlorine have? does that make it reactive or unreactive? what about sodium?

A sample of aluminum metal absorbs 8.32 J of heat, upon which the temperature of the sample increases from 23.2 degrees C to 30.5 degrees C. Since the specific heat capacity of aluminum is 0.90 J/g-K, the mass of the sample is what in grams?

Choose the statement below related to entropy that is correct. Group of answer choicesHeating always decreases the entropy of a system. The solution formation process usually leads to an increase in entropy.

What is the optimal level of humidity for storing wine? A. 70 percent B. 50 percent C. 20 percent D. 10 percent

What is the product? 3•[1 - 4 5 - 7] [3 - 12 15 - 21] [4 - 1 8 - 4] [3 12 15 21] [4 - 12 8 - 21]

A hormone is an organ that secretes chemical substances into the bloodstream.

Complete and balance the equation for the combustion of zns in excess oxygen? zns + ? o2→? zno + ? use no fractional coefficients. the number of moles and the formula of the product containing s are