Carbon dioxide, water, and ethanol all contain at least one atom of oxygen. Is it possible that the
oxygen from a molecule of carbon dioxide could
become the oxygen atom in a molecule of
ethanol?

Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. a physical change doesn’t break the bonds between atoms of a substance or form new ones. compounds can be broken down by a chemical change. a chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. what simple substance would a compound break into? the basic elements that make it up! for example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. which of the following is an example of a chemical change? a separating water into different glasses b breaking frozen ice cubes with a hammer c running an electric current through water d boiling water to evaporate it on a stove

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

How does human environment effect the biosphere