A chemist determines by measurements that 0.0400 moles of hydrogen gas participate in a chemical reaction. Calculate the mass of hydrogen gas that participates.

Look at the bean data from days 4–6. use these data to explain how natural selection changed the number of dark red walking beans over time. writing part

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

If blood contains 150g of hemoglobin per liter of blood, how much hemoglobin would be contained in 10 ml of blood