2. An electric heating element is connected to a 110 V circuit and a current of 3.2 A is flowing though the element. How much energy is used up during a period of 5 hours by the elemets? A. 550 Wh B. 2,580 Wh C. 352 Wh D. 1,760 Wh

Relate observations about thermal expansion for real world situations

G the ksp of calcium hydroxide, ca (oh) 2, is 5.02 * 10-6. calculate the molar solubility of this compound.

In an addition reaction to an alkene the pi bond plays the role of

Which biomolecule is composed of five basic elements: carbon, hydrogen, oxygen, nitrogen, and phosphorus arranged into two types of polymers, one a double-stranded molecule shaped as a double helix, the other polymer is a single-stranded molecule?

What is the relationship between the atomic numbers and ionic radii of the elements in the group 7a

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