Answer:
The water would be neutral, (usually 7). The salt water would be the same (7) and the vinegar would be very acidic. (probably 2).
Explanation:
Answer is 120
Explanation
X is total
if 25% were boys. Then .25x = 40
Divide both sides by .25
X = 160
Total- boys = girl dogs
160-40 = girl dogs
120= girl dogs
Have a nice day. Hope this is helpful.
H is the answer which represent a pair of isotopes
Joseph's percentage error would be 1.89%
<u>Explanation:</u>
Exact value of the density of aluminium = 2.699 g/cm³
Calculated value of the density of aluminium = 2.75 g/cm³
Percentage error = ?
We know:
Therefore, Joseph's percentage error would be 1.89%
Answer:
0.014 theoretical yield and 79% percentage yield