The suns ultraviolent rays can cause skin damage including sunburn and even skin

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

How are isotopes of the same chemical element alike? how are they different?

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