Describe the flow of current through an electric heater when the heater is switched on

Which of the following elements is most likely to be produced during a nuclear fusion reaction in the sun? A) Helium-4 B) Hydrogen-1 C) Uranium-235 D) Uranium-238

Sound waves are mechanical waves in which the particles in the medium vibrate in a direction parallel to the direction of energy transport. What is another name for the type of wave that transfers energy in this way?

Carbon dioxide is a colorless odorless gas why is it considered a pollutant? A. it gets into natural waters and kills fish B. it promotes algal growths in natural waters C. it causes respiratory illness in humans D.

How much power does it take to lift 250 N, 40 m high in 2 seconds

What hydroxide would be formed when sodium reacts with water?

Four moles of hydrogen chloride (HCl) gas react with one mole of oxygen (O2) gas to produce two moles of chlorine gas (Cl2) and two moles of water gas (H2O).

The density of rubbing alcohol is 0.785g/mL at 25 Celsius. Calculate the mass of 15.0 mL of the rubbing alcohol.

Is the universe an isolated system?

1000ml of a gas is cooled from 500 K to 250 K, what is it's final volume? A. 250 ml B. 1000 ml C. 500 ml D. 750 ml E. 2000 ml

A reacton has a theoretical yield of 22.8g. When the reaction was carried out, 15.1g of the product was obtained. What is the percent yield?