Perform the following mathematical operation, and report the answer to the appropriate number of significant figures. 4.7257 - 3.12 = [?]​

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

How many grams of carbon are in 237 grams of ethanol(c2h5oh) and how many sulfide ions are in 2.45 moles of aluminum sulfide show me you you got the answers

Use the periodic table to identify the number of core electrons and the number of valence electrons in each case below. potassium (k): 1s22s22p63s23p64s1