The decomposition of calcium carbonate to calcium oxide and carbon dioxide only takes place at very high temperatures, making the direct measurement of h for this reaction difficult. both calcium carbonate and calcium oxide react readily with dilute hydrochloric acid at room temperature

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

I’m an electrically neutral atomic any element, there are equal numbers of