1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fiesta28 [93]
3 years ago
12

When the equation Fe + Cl2 ----> FeCl3 is correctly balanced the coefficient for Cl2 is

Chemistry
1 answer:
Marysya12 [62]3 years ago
4 0

The correct answer is D. Using the law of conservation of mass the number of atoms on each side of the equation should be equal. Through introspection, we find that there are 2Cl atoms on reactant side as opposed 3Cl atoms on product side. If we add a coefficient of 3 on Cl_2 we get

Fe + 3Cl_2 ==> FeCl_3.

Now there are 6Cl atoms on reactant side and 2 on product side, hence we add a coefficient of 2 on both FeCl_3 and Fe. The balanced chemical equation is,

2Fe + 3Cl_2 ==> 2FeCl_3

You might be interested in
Boron has two isotopes, Boron 10 which has a mass of 10.0129 amu and Boron-11 with a mass of 11.0093 amu. B-10 occurs 84.74% of
podryga [215]

The average atomic mass of Boron: 10.431 amu

<h3>Further explanation   </h3>

Isotopes are atoms whose no-atom has the same number of protons while still having a different number of neutrons.  

So Isotopes are elements that have the same Atomic Number (Proton)  

Atomic mass is the average atomic mass of all its isotopes  

In determining the mass of an atom, as a standard is the mass of 1 carbon-12 atom whose mass is 12 amu  

Mass atom X = mass isotope 1 . % + mass isotope 2.%  + ...

The average atomic mass of boron :

\tt avg~mass=0.8474\times 10.0129+0.1526\times 11.0093\\\\avg~mass=10.431~amu

3 0
3 years ago
What rock forms from magma oozing onto the surface?
timurjin [86]
Answer: A. Igneous rock
8 0
3 years ago
Read 2 more answers
74.5 g of KCl was dissolved in 1000. mL of water. What is the
Degger [83]
Hdhdhdhxhxuxbxuxbdhudhx
3 0
3 years ago
Read 2 more answers
]\ \textless \ br /\ \textgreater \ \huge \boxed{ \red{φµεรƭเσɳ -}} \ \textless \ br /\ \textgreater \ ​ \ \textless \ br /\ \te
azamat

Answer:

Nitrogen fixation is a chemical process by which molecular nitrogen in the air is converted into ammonia or related nitrogenous compounds in soil or aquatic systems. Atmospheric nitrogen is molecular dinitrogen, a relatively nonreactive molecule that is metabolically useless to all but a few microorganisms.

Explanation:

6 0
2 years ago
Read 2 more answers
At a certain temperature, the solubility of strontium arsenate, sr3(aso4)2, is 0.0560 g/l. what is the ksp of this salt at this
REY [17]
The solution for this problem is:
Get into moles first. .0560 grams over 540.8 grams per mole = 1.04 x l0^-4 moles 
Sr3(As04)2 = 3 Sr++(aq) plus 2 As04^-3(aq) 
Ksp = (Sr++)^3(As04^-3)^2 
(Sr++) = 3 X 1.04 x l0^-4= 3.11 x l0^-4 
(As04^-3) = 2 x 1.04 x l0^-4= 2.07 x l0^-4 
Ksp = (1.04 x l0^-4)^3 (2.07 x l0^-4)^2 which equals 4.82 x 10^-20
5 0
3 years ago
Other questions:
  • The building block of silicate minerals is called the _____. A) silicon-oxygen tetrahedron. B) aluminum-oxygen tetrahedron. C) s
    6·2 answers
  • 2-phosphoglycerate(2PG) is converted to phosphoenolpyruvate (PEP) by the enzyme enolase. The standard free energy change(deltaGo
    11·1 answer
  • Tanks of compressed gas must be kept away from heat sources. If a compressed–gas tank is heated too much, it may explode and cau
    7·2 answers
  • Which is an example of a compound?
    5·1 answer
  • ) carbon + oxygen = _____________
    12·1 answer
  • What type of chemical reaction is this CHA + 0,CO, + H2O
    10·1 answer
  • Colors of light with shorter wavelengths - A: have less energy than colors with longer wavelengths Strike Reset B: have more ene
    6·1 answer
  • (b) How many moles of hydrogen are needed to make 30 moles of Fe?<br><br> PLEASE HELP ASAP
    11·1 answer
  • PLEASE HELP ME SOLVE THIS.Thank you so much!
    5·1 answer
  • Clinical thermomerter​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!