What structure what structural feature of cells can allow molecules to flow directly from the inside of one cell to the inside of the next a. plasmodesmata b. chloroplast c. cilia or d. plasmids

Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?