How much thermal energy (q) is required to heat 15.2 g of a metal (specific heat = 0.397 j/g) from 21.0 degrees c to 40.3 degree c

An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two