Select all that apply.
the requirements for one type of atom to substitute for another in a solid solution are:
all substitutions must be limited to the same element.
an atom must be identical in size.
an atom must be similar in size.
the substituting atom must be from the same period.
the substituting atom must be from the same group.

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

Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o          sncl2•4h2o          sncl2•6h2o

Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6