What do these two changes have in common? chemicals in a battery reacting to power a flashlight
snails growing shells

Both conserve mass.

Both are chemical changes.

Both are caused by heating.

Both are caused by cooling.

explanation:

crosscutting concepts have application across all domains of science. as such, they are a way of linking the different domains of science. they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.

58750.08068 is the answer i think

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72

i wish i could but this one is weird give me abc and i can solve it.