1. Obtén la formula empírica de un compuesto formado por 32.4 % de sodio, 22,6 % de azufre y 45,1 % de oxigeno ​

How many neutrons does a atom of cobalt have?

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

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils