How many carbons are in a molecule of hexane?

a. 2

b. 4

c. 6

d. 8

What is time actually

How is sodium extracted from is ore?

Why is a kite flying in the sky an example of potential energy? A. The kite is constantly moving. B. The kite is being pushed by the winds. C. The kite is high above the ground. D. The kite is being pulled by a string.

Choose the isotope that would be most stable. carbon-14 barium-56 lead-82 radon-85

What is closest packing? What is the difference between hexagonal closest packing and cubic closest packing? What is the unit cell for each closest packing arrangement?

Radium-223 is a radioactive isotope with a half-life of 11.4 days. how long (in days) will it be before 87.5% of the sample has decayed?

Which kind of reaction is shown below? 2H2O2 → 2H2O + O2

Phosphorus has the molecular formula p4, and sulfur has the molecular formula s8. how many grams of phosphorus contain the same number of molecules as 7.88 g of sulfur?

Latitude is the only factor that determines the temperature of a region true or false?

What is the overall reaction for lactic acid fermentation?