The diagram shows both of a chemical change and physical change. which statement is supported by the diagram ?

a - atoms of most elements become less stable when they bind to form compounds

b - Compounds can most easily form between elements that have full outer energy levels

c - Compunds can have different properties than the elements that make up the compound

d - Two elements will always combine in the same ratios when they react to form a compound

c is the answer I guess

Explanation:

oxygen and hydrogen are in the gaseous state and oxygen helps in burning

hydrogen makes burning faster

but water extinguishes fire

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

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