5. The relative atomic mass of elements X, Y and Z are 12, 16 and 24 respectively. a) How much is an atom of Z heavier than an atom of Y
b) How many atoms of X will have the same mass as the sum of 3 atoms of Y and 2 atoms
of Z?

6. Adrenaline is produced by the adrenal gland. Adrenaline has the formula C9H13NOx. If its RMM is 183, determine the value of x. Then, write the molecular formula of adrenaline.
[Relative atomic mass: H=1; C=12; N=14; O=16]

7. The relative formula mass of X3(PO4)2 is 310. Determine the relative atomic mass of element X.
[Relative atomic mass: O=16; P=31]

help me plsss

Part b: study of equilibrium on solubility: mg(oh)2(s) ⇌ mg2+(aq) + 2 oh–(aq) cloudy clear (pink) 7. a. b. 8. a. b. 9. 10. 11. 12. when adding concentrated hydrochloric acid, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 7a. you should indicate which ion was added to or removed from the equilibrium mixture. when adding edta, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 8a. you should indicate which ion was added to or removed from the equilibrium mixture. upon heating in which direction is the equilibrium shifting? upon cooling in which direction is the equilibrium shifting? is the forward reaction a. endothermic explain your answers to questions 9, 10, and 11. (l) left (r) right (l) left (r) right b. exothermic

Tell me the iupac name of the following compounds:

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98