Answer:
Elizabeth Madden. Palomino. 2-3 years old. Horses can sleep both lying down and standing up. Horses can run shortly after birth. Domestic horses have a lifespan of around 25 years. Ride a bike.
Explanation:
The mass of the piece of lead is calculated using the below formula
Q(heat)= mC delta T
Q = 78.0 j
M=mass =?
C=specific heat capacity ( 0.130 j/g/c
delat T=change in temperature = 9.0 c
by making M the subject of the formula
M = Q/ c delta T
M= 78.0 j/ 0.130 j/g/c x 9.0 c = 66.7 g of lead
<u>Answer:</u> The molarity of KOH is 0.84 M.
<u>Explanation:</u>
To calculate the concentration of base, we use the equation given by neutralization reaction:
where,
are the n-factor, molarity and volume of acid which is 
are the n-factor, molarity and volume of base which is KOH.
We are given
Putting values in above equation, we get:
Hence, the molarity of KOH is 0.84 M.
Evaporation because the salt would dissolve in the water then boil the water and it will evaporate leaving the salt left in the bowl
