What is H20 and oxygen

2 answers:

4 0

H2O means water, which is made of two hydrogen and one oxygen atoms.
Oxygen is a gas that your body needs to function. Oxygen comes from the air.

Vika [28.1K]2 years ago

3 0

Explanation:Hello H2O is water meaning Each water molecule is made of two hydrogen. atoms and one oxygen atom, thus there are two "H" atoms and one. "O". The atoms are joined by covalent bonding.And oxygen is a colorless, odorless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.

You might be interested in

A large piece of iron was reacted with an acid. What would happen to the rate of the reaction had the large piece been finely di

Anna007 [38]

The reaction occurs in a similar way as magnesium does, but much less vigorous. Strong heating is required to make iron powder burn in oxygen. The reaction gives out a yellow showery sparks and produces a black solid. iron reacts with dilute hydrocloric acid to give iron chloride and hydrogen gas.

3 0

2 years ago

Read 2 more answers

Which of the following is an example of a chemical change?

alexdok [17]

Answer:

Dissolving sugar in water, burning paper, and melting gold are all chemical changes

Explanation:

The action cannot be reversed, or undone. Therefore it is a chemical change.

Boiling water is a physical change.

3 0

2 years ago