A helium balloon contains 0.46g off helium. how many moles of helium does it contain?

Graphite is often used in what types of objects?

How many formula units make up 11.2 g of Magnesium Chloride MgCl2?

Nitrogen fixing bacteria in soil turns nitrogen gas into

What term do you use to describe a solutio that has a lower concentration compared to another solution?

What would a pressure reading of 565 torr be in units of atmospheres?

Which of the following is diamagnetic? A) Sn B) Pb 2+ C) I D) N E) All are paramagnetic

Based on your observations in the lab, what do you think happens to the majority of water (not, ice) at the poles? at the equator?

How do organisms interact with each other and how can one organism be dependent upon other species

Check Sodium inside a star is most likely formed by which process? fission fusion <<--? alpha emission Beta emission

Which of these is the main goal of any titration? to observe the effect of indicators on acids to observe the effect of indicators on bases --> (((to determine the concentration of one of the reactants))) <--- to determine the effects of a base on