Write a nine-line poem with nine words in the first line, eight words in the second line, and so forth, until the last line has only one word.

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

What is the chemical formula for dihydrogen monoxide

Which is an example of a reversible physical change?