How many grams of C3H8O are in 5.00 x 10^22 molecules?

Drive down any three characteristic of modern periodic table

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

What is the percent composition of ca(oh)2? 37.7% ca, 53.0% o, and 10.3% h 45.5% ca, 38.2% o, and 16.3% h 54.0% ca, 43.0% o, and 2.7% h 64.7% ca, 27.0% o, and 8.3% h