Answer: 
Explanation:
Given
Mass of iron piece is 
Heat absorbed 
Temperature changes from
i.e.

Heat absorbed is given by ![Q=mc\Delta T\quad [c=\text{specific heat of material}]](https://tex.z-dn.net/?f=Q%3Dmc%5CDelta%20T%5Cquad%20%5Bc%3D%5Ctext%7Bspecific%20heat%20of%20material%7D%5D)
Insert the values

Thus, the specific heat of iron is 
Answer:
Urinary system here is best described as:
D. regulates fluid balance and eliminates waste.
Explanation:
- The major functional organ i.e.our kidney is responsible and is the major functional organ that carry out the urine out of the body.
- The functional unit of kidney is nephron.
- The functional system of urinary system is also been named as Renal system which works in the order of producuing, storing and eliminating the urine out of body.
- Kidney functions for the excretion of waste in form of urine from the body.
- It is stated that there are about 1,000,000 filtering units are called nephrons.
- It get passed within every 45 minutes.
3I₂ + 2Al → 2AlI₃
m(I₂)=3M(I₂)m(Al)/{2M(Al)}
m(I₂)=3*253.8*20.4/{2*27.0}=287.64 g
The fridge part can, just not the freezer, I think.
Answer:
H₂²⁺(aq) + O₂²⁻(aq) + SO₃²⁻(aq) → SO²⁻₄(aq) + H₂O(l)
Explanation:
H₂²⁺(aq) + O₂²⁻(aq) + Mg²⁺(aq) + SO₃²⁻(aq) → Mg²⁺(aq) + SO²⁻₄(aq) + H₂O(l)
A careful observation of the equation above, shows that the equation is already balanced.
To obtain the net ionic equation, we simply cancel Mg²⁺ from both side of the equation as shown below:
H₂²⁺(aq) + O₂²⁻(aq) + SO₃²⁻(aq) → SO²⁻₄(aq) + H₂O(l)