Which of the following solutions would have the highest pH? Assume that they are all 0.10 M in acid at 25∘C. The acid is followed by its Ka value. D) HCHO2, 1.8 × 10-4 E) HClO2, 1.1 × 10-2 B) HCN, 4.9 × 10-10 C) HNO2, 4.6 × 10-4 A) HF, 3.5 × 10-4

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

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