A weather balloon is inflated to a volume of 2.2*10^5L with 37.4g of helium. What is the density of helium in grams per liter?

Will lead (Pb) react with HgSO4? A) No, a reaction will not occur because the activity of lead is less than that of mercury. B) Yes, a reaction will occur because the activity of lead is greater than that of mercury.

Molecular bonding cannot occur without ... electrons, sunlight, protons, or neutrons?

A gas is at 35.0 ∘c and 2.50 l. what is the temperature at 5.00 l?

How can something be considered abiotic and biotic

A mineral sample has a mass of 4.2 grams and a volume of 2 milliliters what is the density of the mineral?

The mass number of an element is the sum of the number of

Balance the following reaction. CH4+O2==>CO2+H20

Why do you think crime scenes involving homemade bombs have increased?

The molecules of a gas at constant volume are somehow given a lower average kinetic energy. What two measurable properties of the gas will change and in what direction?

Type in the correct values to correctly represent the valence electron configuration of oxygen: AsB2p A= B = C =