If you are suicidal read this Your skin isn't paper don't cut it. Your face isn't mask don't hide it. Your size isn't a book don't judge it. Your heart isn't a door don't lock it. Your neck isn't a rope don't hang it. Your life isn't film don't end it

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.