Un compuesto está formado por un 80% de carbono (C) y un 20% de hidrógeno. (masas atómicas; C=12; H=1). La fórmula empírica de este compuesto será

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy

In which region is the substance in both the solid phase and the liquid phase? 1 2. 3 4 mark this and return save and exit next

The polarity of an oxygen-hydrogen bond is higher than the polarity of a nitrogen-hydrogen bond, allowing amines to be more soluble than alcohols.