Answer:
Total charge= -25
Step-by-step explanation:
Given :
Charges of some ions
Aluminium +3
Phosphate -3
Chloride -1
Silver +1
To find total charge on 8 phosphate,7 chloride and 2 Aluminium atoms
Aluminium +3 × 2 =+6
Phosphate -3 × 8 = -24
Chloride -1 × 7 = -7
total charge=
+6-24-7 =+6 -31
= -25
Answer:
2 + (7 ÷ 9)x = 5 ÷ 6
Step-by-step explanation:
Given

You can eliminate fractions by turning them into division problems!
2 + (7 ÷ 9)x = 5 ÷ 6
2/5 is bigger and 3/8 is smaller