Which best describes heat?

Name the type of equation shown here: 3Pb+2H3PO4 = = > 3H2+Pb3 (PO4) 2 A. double replacement B. single replacement C. combustion D. synthesis

Which area of the periodic table has the highest electronegatvities

A plasma-screen TV contains thousands of tiny cells filled with a mixture of Xe, Ne, and He gases that emits light of specific wavelengths when a voltage is applied. A particular plasma cell, 0.900 mm*0.300mm*10.0mm, contains 4.

Select the correct answer. Which of these elements is rarely found in organic molecules? A. hydrogen B. oxygen C. barium D. carbon

when sodium carbonate is dissolved in water, it doesn't dissociate, or break up, completely. There is always some sodium carbonate in solution. Knowing this, which of the two samples is most alkaline?

Which of the following is not true of a pseudoscience? It is a practice or belief that claims to be science, It does not follow the scientific method, It is not proven reliable through experimentation, It is a science that is controversial or

Why is it possible to bend metals but not ionic crystals

If the concentration of an analyte in a solution prepared by digesting a 2.05 g solid sample and making up to 100 mL, is found to be 21.1 mg L-1. What was the mass percentage of the analyte in the original sample?

If a particular ore contains 58.5% calcium phosphate, what minimum mass of the ore must be processed to obtain 1.00 kg of phosphorus?

What is the difference between friction and gravity