Calculate a pendulums frequency (in Hz) if the pendulum completes 19 cyclesin 0.5 s.

in carbon dioxide gas, the carbon atom forms two double bonds. what will the geometry of the bonds be

Which is an example of a mixture made of parts that can easily be separated? A) Cake (Flour, eggs, sugar) B) Cement (Sand, gravel, water) C) Water (Hydrogen and oxygen) D) Snack mix (Nuts, pretzels, and chips)

How many electrons did magnesium give to each chlorine atom

Whats is causing the ice block to melt

A total of 1.4 moles of sodium nitrate is dissolved in enough water to make 2.0 liters of an aqueous solution. The gram-formula mass of sodium nitrate is 85 grams per mole. Determine the molarity of the solution.

Two components combine to create a binary ionic compound. Name one of them

True or false. The synthesis of giant molecules from components of repeating units is polymerization.

Which term names an environmental cost of fossil fuel consumption? A. cheap energy B. increased greenhouse gases C. renewable resource D. low pollution

Slowly heating butter in a pan until it changes from a solid to a liquid is an example of a physical change. True False

Action - reaction forces don't cancel each other. A. True B. False