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Science: Chemistry Facts

Typically, ____ (pH 2.5) contains 5% acetic acid by volume. calcium
The core of a pencil contains ____ (made of carbon not lead). dry ice
Mixing HCl and NaOH produces ____ (table salt) and water. graphite
Milk (pH 6.7) is slightly acidic because it contains ____. lactic acid
The solid form of carbon dioxide (CO2) is ____. NaCl
Iron can oxidize to iron oxide, which is also known as ____. ozone
Hard water contains ____ and magnesium ions. rust
Dioxygen (O2) and ____ (O3) are allotropes of oxygen. vinegar