If the mass of one mole of hydrogen is 1.01 grams; phosphorus, 30.97 grams; and oxygen, 16.0 grams, what is the molar mass of phosphoric acid (HÀPOÁ) ?

How many molecules of oxygen are found in 3.00 moles of oxygen

What mass of hydrogen peroxide must be used to produce 1.00 L of oxygen gas at 25.0°C and 1.00 ATM?

Write the balanced chemical equations for the following reactions:. a.) The combination reaction that occurs when lithium metal and flourine gas react ... b.) The decomposition reaction that occurs when solid barium carbonate is heated (2 products).

How does a solar eclipse effect earths temperature

The pressure of a 70.0L sample of gas is 600 mm Hg at 20.0C. If the temperature drops to 15.0C and the volume expands to 90.0L, what will the pressure of the gas be?

What is the study of matter called? O A. Chemistry O B. Philosophy O O C. Biology D. Physics

What impact do the amounts of available energy, water, and oxygen have on an ecosystem?

A team of scientist is studying an earthquake. Which task would the physical scientist most likely do

The atomic number of nitrogen is 7. The number of electrons a neutral nitrogen atom has is

Describe the charges of the subatomic particles by choosing the answer from the drop-down menu. Proton have a charge. Have a 0 charge. Electrons have a charge.