Why does magma composition change during fractional crystallization? Different elements in the magma form crystals at different rates, leaving behind more of the unused elements. ... The crystals are denser than the magma.
Answer:
halogens
Explanation:
on a periodic table (just search ptable.com) right under the 17 in small words it says halogens
1) Chemical reactions produce new substances
Ans (d)
2) The symbol, Δ in a chemical reaction means that heat of supplied to the reaction.
Ans (a)
3) A skeleton equations does not show the reaction stoichiometry, i.e. the relative amounts of reactants and products.
Ans (d)
The pH of solution at equivalence point is 5.2...
Answer:
Here are some possible answers:
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Decrease the amount of snail mail, and switch to electronic correspondence when possible.