How many grams of HCl are needed to make 0.5 L of a 3.4 M solution?

What will most likely happen when two bromine atoms bond together?

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

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2