Conduct an experiment to show formation of hydrogen gas by action of dilute HCl on zinc​

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

What is a metal replacement reaction

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