The special right triangle 45° - 45°-90° represents in the figure below.. b Find the value of a and b. (figure is not drawn to the scale) ​

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space