Please help with these find the total number of atoms for EACH INDIVISUAL PROBLEM Brainlist if right 25 points 1 CO₂
2 KCl
3 H₂O
4 HNO₃
5 SO₃
6 2 SO₃
7 CaCO₃
8 Al₂O₃
9 C₉H₈O₄
10 NaC₂H₃O₂
11 Mg(NO₃)₂
12 Al(OH)₃
13 2 KOH
14 KMnO₄
15 Mg(OH)₂
16 C₆H₄Cl₂
17 C₂H₄O₂
18 K₂SO₄
19 2 HNO₃
20 Si(HCO₃)₄
21 C₇H₅(NO₂)₃
22 Ca(H₂PO₄)₂
23 FeS₂
24 C₁₂H₂₂O₁₁
25 2 H₂SO₄
26 C₆H₇O₂(OH)₃
27 H₄Mg₃Si₂O₉
28 3 SiO₂
29 2 Al(CO₂)₃
30 3 B₂(CO₃)₃

probably .5

i can on others if necessary.

134.6 us dollars

step-by-step explanation:

1 us dollar = 1.33 canadian dollars

so, 150 us dollars = 150 × 1.33 = $199.5.

in canada, the money mitchell spent = 20 canadian dollars.

remaining canadian dollars with him = 199.5 - 20 = 179.5.

after mitchell returned to us, he exchanged the remaining canadian dollars to us dollars.

179.5 canadian dollars = 179.5 × 0.75 = 134.6 us dollars.

answer is 270 degrees: -

to convert radians to degrees you multiply by 180/π

9π/ 6 * 180 / π

=   9 * 180 / 6

= 9 * 30

=   270 degrees   answer