Answer:
81
Step-by-step explanation:
This questions stated differently so I’m assuming it’s 4?
Those number are all powers of 10
10= 10^1
100= 10^2
1000= 10^3
and so on...
Answer: 0.7893g//mL
If 20 mL of ethanol (density =0.7893g//mL) is mixed with 40mL water (density = 0.9971g//mL)
Step-by-step explanation: