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:
Part A : 9.555 . 10^38
Part B : 7.4 . 10^-3
Step-by-step explanation:
<h3>Part A</h3>

<h3>Part B</h3>


A blood cell is too small. So the more reasonable measurement is 0.0074mm.
answer:
25-7=n. n = 18
Step-by-step explanation:
...
Answer:the second one
Step-by-step explanation:
y1= log 3 etc so it the second one