How many unpaired electrons are there in helium?

A balloon contains 0.950 mol of nitrogen gas and has a volume of 25.5 L. How many grams of N2 should be released from the balloon to bring the volume to 17.3 L

Number of Protons Number of Neutrons Atomic Number Mass Number Element (symbol) 4. 2 A B С D 12 10 E F Using the periodic table, complete the table to describe each atom. Type in your answers. A B С D E

When blood passes through the lungs, carbon dioxide and water are formed from carbonic acid dissolved in the blood. The carbon dioxide formed passes into the lungs and is exhaled. H2CO3 H2O + CO2 What kind of reaction has occurred?

Problem Page A jet airplane reaches 846. Km/h on a certain flight. What distance does it cover in 13.0 min? Set the math up. But don't do any of it. Just leave your answer as a math expression.

Is Vitamin E an element?

A cup can hold 50 ml of water and has a mass of 25g. If each penny weighs 2g, how many pennies can it hold before it sinks in fresh water? Explain how you got your answer.

How many moles of FeO are produced if 8 moles of CuFeS, are consumed?

Will mark as Brainliest. How much energy is released when 16.5 g of steam is condensed at 100 degrees Celsius? -37290 J -3729 J -136 J -136 kJ

What is the mole fraction, x, of solute and the molality for an aqueous solution that is 16.0 % NaOH by mass

What is the square root of 54554? What is the square root of 35654?