Balance each equation by entering the correct coefficients. 1. SiO2 + CaC2 → Si + CaO + CO2
2. NH3 + O2 → NO + H2O

Matches the chemical name of each oxide of phosphorus to its chemical formula

Which statement is best described as a atom

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.