How can we test whether a substance is a metal or a non-metal

Where does oxidation and reduction take place in the reaction of Br2 + 2I - → 2Br + I2

Whats the summ of Mechanical energy

Suppose a certain species of insect lives in the lush green canopy of the rain forest. Some of the insects are bright green in color, and some are bright yellow. Assume there is a natural predator of the insect in the area.

According to Dalton's atomic theory, which of the following best describes an atom? Can be destroyed Present in all matter Composed of elements Does not contain particles

If the pressure of the gas is doubled while the volume is held constant, what happens to its temperature? [Section 10.4] -That is, if P is doubled, T increases by a factor of three. -That is, if P is doubled, T increases by a factor of four.

Adding drops of food coloring to a beaker of water more organized system?

Some chemical hazards are physical and some are related to the potential health effects of exposure. Click only one box for each response Toxicity Carcinogenic Flames Inhalation hazard Flying objects

Which would be best categorized as heat transfer by convection? A) Wearing a white shirt to stay cool on a summer day.

All the atoms of a particular element have the same number of neutrons. a. True b. False

For keeping goods cold during shipment, what is an advantage of dry ice (frozen carbon dioxide) pver water ice?