Show how many grams of O2 would be needed to react with 35g of Aluminum
4A1 + 302 --> 2Al2O3

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule

Which quote from the passage best illustrates della’s optimism? “…and at length she was able to look up with dim eyes and a smile and say: "my hair grows so fast, jim! ” “…her heart had simply craved and yearned over them without the least hope of possession.” “and now, they were hers, but the tresses that should have adorned the coveted adornments were gone.” “beautiful combs, pure tortoise shell, with jewelled rims--just the shade to wear in the beautiful vanished hair.”d, ardent, most likely means? gloomy calm passionate innocent

Astudent measured the ph for four solutions which ph indicated the lowest hydronium ion or concentration