Answer:
Uh, the second one?
Explanation:
Try to restate the question please.
The last one. A mixture isn’t chemically combined.
Answer:
D. The government determines what is right & wrong for everyone
Explanation:
Hello.
<span>HI + NaOH --> NaI + H2O
2HClO4 + Sr(OH)2 --> Sr(ClO4)2 + 2H2O
</span>
Have a nice day
Answer:
B. Chemical changes produce new substances; physical changes do not.
Explanation:
Physical changes only alter appearances, while chemical changes are interactions that create new chemical formulas.
