Chemical properties, reactions, and analyses Quiz

Water is composed of two hydrogen atoms and one oxygen atom.

Helium is a colorless, odorless noble gas with atomic number 2.

The chemical symbol for iron is Fe.

Acids turn blue litmus paper red, indicating acidity.

The unpleasant smell of rotten eggs is due to the presence of hydrogen sulfide gas.

Hydrogen peroxide has the chemical formula H2O2.

Rusting is primarily caused by the oxidation of iron in the presence of oxygen and moisture.

Fluorine is a halogen with atomic number 9.

Synthesis reactions involve the combination of substances to form a new compound.

Table salt, or sodium chloride, has the chemical formula NaCl.

Oxygen is produced as a byproduct of photosynthesis in plants.

Evaporation is the process of a liquid turning into a gas, usually due to heat.

Bases neutralize acids, leading to an increase in pH.

Bases turn red litmus paper blue, indicating alkalinity.

Rusting involves a redox (reduction-oxidation) reaction, where iron undergoes oxidation.

Acids reacting with metals generate hydrogen gas as a product.

Neutral solutions have equal concentrations of hydrogen (H+) and hydroxide (OH-) ions.