What are the three main classes of elements? Provide two physical properties for each class of elements

Show dipple dipole forces in water and ethyl alcohol.

Is the molecule NO nonpolar covalent, polar covalent, or ionic? A. Nonpolar Covalent B. Polar covalent C. Ionic D. None of the Above

Whats the difference between china and Europe

Elaborate on why water has a neutral pH. A) Water will turn blue litmus paper red and red litmus paper blue. B) Water has equal concentrations of hydrogen ions and hydroxide ions. C) Water forms many heterogeonous solutions and homogeneous solutions.

A snow skier heading down a hill is? (newtons laws)

Aluminum and Oxygen gas will react to form Aluminum Oxide (Al2O3). When the equation is balanced, How many moles of Al2O3 are formed when a mixture of 0.36 moles Al is ignited? a. 0.12 b. 0.18 c. 0.28 d. 0.46

Which state of the West produces the widest varieties of fruits, vegetables, and nuts? A) California B) Colorado C) Wyoming D) Alaska

A chemical engineer for a fertilizer company is determining the most efficient way to produce ammonia. the engineer carries out the haber reaction under four different conditions.

What type of Bond exist in a molecule of hydrogen Iodide

Which common material is an example of a polyamide?