Plz PLZ plz PLz Plz Plz Help Plz dont answer if you dont know thank you :) Ps. I will give brainliest if there are 2 answers and if it's right.

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

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2

Which is the most concentratic acid