They have the same density because a material, no matter how much of it there is, will always be a certain density. A 40g ball of iron has the same density as a 1g ball of iron.
Answer:
A
Explanation:
because on the first alphabet they've been specific of the weather partaking in the area
A) probably some thin metal would work
B) Medium strength
C) either an electron or positron
D) 9.11x10^-31 kg
Explanation:
We have to calculate value.
It is known that at the equivalence point concentration of acid is equal to the concentration of anion formed.
Hence, [HA] =
Now, relation between and pH is as follows.
pH =
Putting the values into the above formula as follows.
pH =
4.23 = (as [HA] = )
= 4.23 (as log (1) = 0)
or, = 4
Thus, we can conclude that of given weak acid is 4.
Answer: The final temperature will be
Explanation:
To calculate the specific heat of substance during the reaction.
where,
q = heat absorbed =41840 J
c = specific heat =
m = mass of water = 200 g
= final temperature =?
= initial temperature =
Now put all the given values in the above formula, we get:
Thus the final temperature will be