Waves can transfer energy, but they... 1-always have the same wavelength

2-cannot carry sound

3-are unable to move through empty space

4-do not move matter

Describe the chemical reaction based on the chemical equation below. also, explain whether the equation is balanced.

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!

Which of the following is a physical property flammability heat of combustion solubility and toxicity