Answer:
5 mph
Explanation:
100 miles, 20 hours (divide by 2)
50 miles, 10 hours (divide by 2)
25 miles, 5 hours (divide by 2)
divide both sides by 5
5 miles, 1 hour
Rocks charcoal and sand could help
Contain genetic material from both mother and father ;) hoped this helps !
When a mixture consists of a weak acid, such as HF, and its corresponding salt, NaF, this is an acid buffer. So, we can use the equation as written below:
pH = pKa + log(salt/acid)
For HF, the pKa = 3.17
Thus,
pH = 3.17 + log(0.12/0.26)
<em>pH = 2.83</em>
