H2o is the chemical formula for water. in order to produce a single molecule of water, how many hydrogen atoms are needed?

The boiling point of liquids is very high what does it indicate

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

In apex! a liquid heated beyond a certain temperature becomes