Answer:
32km/hr
Explanation:
The question asks to calculate the average speed for a boat.
Mathematically, the average speed is the total distance divided by the total time
Let’s get the total distance traveled:
That would be 70km + 26km = 96km
Now the total time taken would be 3 as the boat did not move at all for an hour.
The average speed is thus 96/3 = 32km/hr
Ca, V, Cu, Kr
Remember a period is a the horizontal rows in the Periodic Table.
I think the answer is B . I really hope that this helps you out.
Answer: The molarity of the borax solution is 0.107 M
Explanation:
The neutralization reaction is:

According to neutralization law:

where,
= basicity of
= 2
= acidity of borax = 2
= concentration of
= 1.03 M
= concentration of borax =?
= volume of
= 2.07ml
= volume of borax = 20.0 ml
Now put all the given values in the above law, we get the molarity of borax:

By solving the terms, we get :

Thus the molarity of the borax solution is 0.107 M
Halogens differ from Noble Gases because Halogens consist of 5 Elements whereas Noble Gases consist of 18. Also, the elements are different