When 318 cal of energy is added to 279g of copper at 14.8°C, the temperature increases to 27.2°C. What is the specific heat of copper?

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

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?

Which statement best describes the he properties of iconic compounds ?