The table shows the specific heat of four substances—brick, dry soil, paper, and water. if all four substances were exposed to sunlight for the same amount of time, which substance would heat up the slowest?

What shape would a molecule with two bound groups and two lone pairs have?

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.

Answer asap : ( a. how does mucus prevent the entry of pathogens? b. describe two ways white blood cells protect us from pathogens.