Answer:
FeCl₃ + <u>3</u>NaOH → Fe(OH)₃ + <u>3</u>NaCl
Explanation:
You are given a skeleton equation, or unbalanced equation.
FeCl₃ + NaOH → Fe(OH)₃ + NaCl
<u>Count the number of atoms on each side</u>. If there is 1 atom, the subscript is not written. If the subscript to the right of a bracket, it belongs to each element in the bracket.
Reactants → Products
Fe 1 Fe 1
Cl 3 Cl 1 Not balanced
Na 1 Na 1
O 1 O 3 Not balanced
H 1 H 3 Not balanced
<u>The number of each element must be the same in the reactants and products.</u> We can see that Cl (chlorine), O (oxygen) and H (hydrogen) have different numbers.
<u>Write in coefficients in front of formulas</u> (separated by + sign). Coefficients multiply each subscript (or "1" if not written) in the formula. <u>Recount the atoms until you have equal reactant and product atom numbers.</u>
I see that I need more chlorine in my products. Multiply the formula that has "Cl" by 3.
FeCl₃ + NaOH → Fe(OH)₃ + 3NaCl
Reactants → Products
Fe 1 Fe 1
Cl 3 Cl 3 Cl is balanced now.
Na 1 Na 3 Not balanced
O 1 O 3 Not balanced
H 1 H 3 Not balanced
Fix the "Na" now. Multiply the formula with "Na" on the left by 3.
FeCl₃ + 3NaOH → Fe(OH)₃ + 3NaCl
Reactants → Products
Fe 1 Fe 1
Cl 3 Cl 3
Na 3 Na 3
O 3 O 3
H 3 H 3
Each side has the same number of each element. Therefore, this is balanced now.
Balanced formula:
FeCl₃ + <u>3</u>NaOH → Fe(OH)₃ + <u>3</u>NaCl
Answer:
Because they are electrical conductors because their delocalized electrons carry electrical charge through the metal. they are good conductors of thermal energy because their delocalized electrons transfer energy.
I hope it helps.
The answer is B tryptophan is a amino acid
The final temperature :T₂=411.125 K = 138.125 °C
<h3>Further explanation</h3>
Given
T₁=-20 °C+273 = 253 K
V₁=40 ml
V₂=65 ml
Required
Final temperature
Solution
Charles's Law
When the gas pressure is kept constant, the gas volume is proportional to the temperature
Input the value :
T₂=(V₂.T₁)/V₁
T₂=(65.253)/40
T₂=411.125 K = 138.125 °C
