Atoms from different substances can never combine with atoms from other substances. disagree or agree reason why ?

answer: at room temperature (roughly 20 degrees c), you can dissolve 203.9 grams (or 200 grams) of sugar in 100 ml of water. as water temperature increases, the amount of sugar that will dissolve increases, up to about 500 grams of sugar in 100 ml water at 100 degrees c.

explanation:

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)