Answer: 
Explanation:
Volume of metal = volume of water displaced = (30.0 - 25.0) ml = 5.0 ml
Density of metal = 5.50 g/ml
Mass of metal =
Volume of water = 25.0 ml
Density of metal = 1.0 g/ml
Mass of metal =
As we know that,
![-[m_1\times c_1\times (T_{final}-T_1)]=[m_2\times c_2\times (T_{final}-T_2)]](https://tex.z-dn.net/?f=-%5Bm_1%5Ctimes%20c_1%5Ctimes%20%28T_%7Bfinal%7D-T_1%29%5D%3D%5Bm_2%5Ctimes%20c_2%5Ctimes%20%28T_%7Bfinal%7D-T_2%29%5D)
.................(1)
where,
q = heat absorbed or released
= mass of metal = 27.5 g
= mass of water = 25.0 g
= final temperature = ?
= temperature of metal = 
= temperature of water = 
= specific heat of lead = ?
= specific heat of water= 
Now put all the given values in equation (1), we get
![27.5g\times c_1\times (41.0-153)^0C=[25.0g\times 4.814J/g^0C\times (41.0-25.0)^0C]](https://tex.z-dn.net/?f=27.5g%5Ctimes%20c_1%5Ctimes%20%2841.0-153%29%5E0C%3D%5B25.0g%5Ctimes%204.814J%2Fg%5E0C%5Ctimes%20%2841.0-25.0%29%5E0C%5D)
Thus the specific heat of the unknown metal sample is
Answer:
it turns from an atom origrionally to an ion
Explanation:
lithium atoms contain 3 protrons and 3 electrons. When it loses an electron, it is now an ion with more positive protons than electrons, meaning it is no longer balanced and has a +1 charge that was originally cancelled out by the electron we lost
It is a covalant bond. Because any compound made up of nonmetals will be covalant. Compounds made up of a non metal and metal willl form a ionic compund. :)
Answer: The reactants’ bonds break, and bonds of the products form.
Explanation:
When a chemical reaction takes place, the bonds are broken and new bonds are formed to make new molecules. Like when 2 water molecules are broken down to form hydrogen and oxygen.
Data Given:
Time = t = 30.6 s
Current = I = 10 A
Faradays Constant = F = 96500
Chemical equivalent = e = 63.54/2 = 31.77 g
Amount Deposited = W = ?
Solution:
According to Faraday's Law,
W = I t e / F
Putting Values,
W = (10 A × 30.6 s × 31.77 g) ÷ 96500
W = 0.100 g
Result:
0.100 g of Cu²⁺ is deposited.
