If you hold a jar over a lit candle, a dark residue forms on the inside of the jar. This residue is

What are the properties of metal that make it a useful material for electricians?

The energy stored within the nucleus of an atom; energy released from a fission or fusion reaction is called

A weather forecast shows 35 m/h on the weather map. Which weather component does this number represent? A. Humidity B. Precipitation C. Wind direction D. Wind speed

Creating a prototype and troubleshooting o are steps in the development of ___? A. a new scientific theory B. A new experiment C. A new scientific law D. A new technology

In a compound that contains monatomic ions, which of the following gets named first? Question 5 options: the roman numeral of the valence number the nonmetal the anion the metal

23 Which term identifies the half-reaction that occurs at the anode of an operating electrochemical cell? (1) oxidation (3) neutralization (2) reduction (4) transmutation

Which of the following is true? A) Gas atoms subjected to electricity emit bright lines of light. B) Gas atoms absorb white and emit a continuous spectrum of light. C) Gas atoms under high pressure emit dark lines against a continuous spectrum.

What common household element can, over time, reduce airflow, insulate components, reduce heat exchange or even cause the system to hang or reboot?

Clouds that form at an elevation of 3 kilometers will most likely be composed of A) raindrops B) ozone C) ice crystals D) sleet

Describe how glacial erosion influenced the topography of Ohio.