A student records the mass of a piece of iron. The iron is then left outside until it rusts. What type of reaction occurs, and how does the mass of the object after rusting compare with its original mass?

The button batteries in small devices like watches are commonly composed of silver-zinc or mercury-zinc batteries.

Polished metals have a metallic luster, which means ...

What is the concentration of a base with a pOH of 12?

Carbon dioxide can change directly from the solid phase to the gaseous phase. true or false

What do all oxygen atoms have in common

Which earth cycle does the suns energy drive

How many moles are in 10 grams of CaCl2?

Which is the correct formula for phosphorus pentachloride? PCl4 because a subscript of 4 indicates four Cl atoms PCl5 because a subscript of 5 indicates five Cl atoms P5Cl because a subscript of 5 indicates five P atoms P5Cl3 because a subscript of

Why are the elements in groups 3 to 12 often used to make dyes?

What is not needed for corrosion of metals? a. oxygen c. water b. ions d. sunlight