For gizmo cell types does anyone have the answers for activity c and d with links? (not ones you have to pay for)

Find the protons, electrons and neutrons for strontium with a mass of 83

Which are forms of frozen water? check all that apply. dew frost hail rain sleet

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