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
pogonyaev
3 years ago
5

Chromium (Cr) can combine with Chlorine (Cl2) to form Chromium chloride (CrCl3). Which equation is a correction representation o

f this reaction?
2Cr + 3Cl2 --> CrCl3.
Cr + Cl2 --> CrCl3.
2Cr + Cl2 --> CrCl3.
2Cr + 3Cl2 --> 2CrCl3.
Chemistry
2 answers:
Vladimir79 [104]3 years ago
7 0
Here, You just need to compare the number of atoms at both sides, only option D contains equal number of atom, so it is correct equation.

<span>2Cr + 3Cl2 --> 2CrCl3.

Hope this helps!</span>
Shalnov [3]3 years ago
4 0
Balance the reaction so the same number of each type of atom is on each side. Which option seems balanced to you?
You might be interested in
A researcher recorder that a chemical reaction require 2.90 gal water and raised the temperature of the reaction vessel by 57°F.
Ivan

Answer:

10.875L

Explanation:

The problem here is a simple conversion. The conversion is from gal to liters Liter is a SI unit for recording volume as stated in the problem.

Given that:

              1 gallon of water = 3.75L

              2.90 gallon will be 2.9 x 3.75; 10.875L

4 0
3 years ago
The man who developed the concept that light is emitted and absorbed in bundles or packets was:
ludmilkaskok [199]
Planck suggested that light/energy was absorbed/released in certain amounts, called quanta.
3 0
3 years ago
Read 2 more answers
Determine the heat given off to the surroundings when 9.0 g of aluminum (fm = 26.98) reacts according to the equation 2al + fe2o
Akimi4 [234]

Hey there!:

Number of moles:

Molar Mass Al = 26.98 g/mol

n = mass / molar mass

n = 9.0 / 26.98

n = 0.3336 moles of Al

Given the reaction :

2 Al + Fe2O3 = Al2O3 + 2 Fe

From the equation, 2 moles of Al give off 849 kJ of heat :

Actual heat given off :

0.3336 / 2 * 849 =

0.3336 / 1698 = 1.4*10² Kj


Hope that helps!


8 0
3 years ago
Identify each definition that applies to the compound in red. Check all that apply.
andre [41]

Answer:

Arrhenius acid & Bronsted-Lowry acid

Explanation:

4 0
3 years ago
Hi lovessssssss <br> Hsnsgehsndgd
Sergio039 [100]
Hiiiiiiiiiiiiiiiiiiiiiikiiiii
3 0
3 years ago
Other questions:
  • (c) ammonium carbonate + lead nitrate ? Step-by-step solution Step 1 of 3 v Step 2 of 3 v Step 3 of 3 ^ c) The ions formed in so
    7·1 answer
  • A two-liter soft drink bottle can withstand apressure of
    14·1 answer
  • Phosphine, PH₃, is a colorless, toxic gas that is used in the production of semiconductors as well as in the farming industry. W
    10·1 answer
  • A capacitor is to an electric current as a _____ is to a river.
    6·1 answer
  • The layered structures made of calcium carbonate by precambrian cyanobacteria are called _____.
    14·2 answers
  • Use the definition of molarity to calculate the concentration of 12.34 g of CaSO4 completely dissolved in water, with a solution
    15·1 answer
  • What mass is contributed by Br-79?
    12·1 answer
  • Equation: CH4 + 202 CO2 + 2H20
    7·1 answer
  • The energy E of the electron in a hydrogen atom can be calculated from the Bohr formula:
    14·1 answer
  • How many molecules are in 54.0 grams of CO2?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!