The energy required to start a reaction is called

ionization energy

kinetic energy

electronegative energy

activation energy

Licl has how many valence electrons

Which substance gives up electrons in this in this reaction? 4Al (s) + 3O2 (g) → 2Al2O3 (s) O2 Al2 O3 Al

The coefficients of a balanced chemical equation indicate the relative number of

A salt is best described as a compound that is formed from the reaction between an acid and a base. a strong acid and a weak acid. a strong base and a weak base. an acid and water Save and Exit Next Submit

At stp, what is the volume of 4.50 moles of nitrogen gas

Was the relationship among temperature, heat, and thermal energy?

What will most likely happen when a warmer air mass exists above a polar ice sheet? The temperature of the ice sheet will be lowered. Heat will be transferred from the air mass to the ice. The air mass will exert high pressure and rise upwards.

A 2.00 L sample of gas at 35 C is to be heated at constant pressure until it reaches a volume of 5.25 L. To what Kelvin temperature must this sample be heated?

Of the following reactions, which one produces oxygen gas? Fermentation Anaerobic respiration Aerobic respiration Photosynthesis

Describe the electrodes in this iron-copper galvanic cell.