Question

(30 points)the compound water is made from the gases oxygen and hydrogen how is water different from the elements that make it up? explain

Answer 1

The molecule of water is different from the molecules of oxygen and hydrogen in the following ways:

1. Combustion: Oxygen supports combustion, hydrogen burns in the air to form water. Water is not combustible. It rather inhibits combustion when poured over burning substances.

2. State of matter: Water is a liquid in room temperature whereas oxygen and hydrogen are gases. The polar nature of water contributes to hydrogen bonding between the hydrogen and oxygen atoms of water.

3. Density: Water is denser than both oxygen and hydrogen. Hydrogen bonding helps pack more molecules of water in less space.

4. Freezing point: Water freezes to ice at 0°C whereas oxygen freezes at -218°C and hydrogen freezes at -259°C.

Answer 2

Answer;

Water is a liquid that we can use to put out fires. Both oxygen and hydrogen are gases, and hydrogen can easily catches fire.

Explanation;

-A substance like water, that is made up of two or more elements, is called a compound. Compounds are usually very different from the elements that have combined together to make them.

-Water, for example, is a liquid that we can use to put out fires. Both oxygen and hydrogen are gases, and hydrogen easily catches fire. It is a compound formed when inflammable hydrogen reacts with oxygen. Here, it is being used to put out a fire. Like all compounds, the properties of water are very different from those of the elements from which it is composed.