At what temperature will 0.654 moles of helium gas occupy 12.30 liters at 1.95 atmospheres

Hydrogen powered cars create less pollution than gasoline powered cars when driven. What might be a challenge to using hydrogen as a fuel?

A black bear consumes 100 kg of food in a single month. How much of this food would be field mice and rats (rodents) ?

A bird is able to easily soar when it flies over a thermal. A thermal is a current of warm air that is heated by the ground and rises up into the sky, taking the bird with it. What is this an example of? A. Conduction B. Radiation C. Contusion D.

Which situation would probably NOT result in the formation of new species? A) The introduction of a predatory fish that only eats the largest native bass in a Georgia lake.

The molar mass of argon is 40 g/mol. what is the molar mass of a gas if it effuses at 0.91 times the speed of argon gas?

According to the ph scale, which substance has the highest basicity? a. milk b. oven cleaner c. distilled water d. stomach acid

How many covalent bonds does oxygen form if each of its unpaired electrons participate in one bond?

What can be concluded if an ion of an element is smaller than an atom of the same element?

At stp how many liters of nh3 can be produced from the reaction of 6.00 mol of n2 with 6.00 mol of h2?

In an experiment, the density of an unknown liquid was calculated to be 0.78 g/ml. if the accepted value is 0.75 g/ml, calculate the percent error made.