Select the equations that are correctly balanced. CaCO 3 → CaO + CO 2 Fe 2O 3 + 3H 2 → 2Fe + 3H 2O Al + 3Br 2 → AlBr 3 H 2O + 2O 2 → H 2O 2

The cluster of developing cells from conception until birth is called an

2. cheryl hears a new song on the radio every day during the week on her commute to work. surprisingly, when the song comes on at a party on saturday night, she knows most of the words without trying. describe the three ways that we use cognition to learn without reinforcement. which type of cognitive learning without reinforcement best explains how cheryl knew the song lyrics? explain your answer.

The direct energy source that drives atp synthesis during respiratory oxidative phosphorylation is