A 35.0 g piece of metal wire is heated, and the temperature changes from 21 °C to 52 °C. The specific heat of the metal is 0.900 J/g.°C. How much energy was required to heat the metal?

Particles vibrate in a rigid structure and do not move relative to their neighbors.

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

For the reaction i2(g)+br2(g)←−→2ibr(g), kc=280 at 150 ∘c. suppose that 0.450 mol ibr in a 2.00-l flask is allowed to reach equilibrium at 150 ∘c. what is the equilibrium concentration of 2ibr, i2, br2