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
Zielflug [23.3K]
4 years ago
9

Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coeffici

ent is "1."
Al + HCl → AlCl3 + H2
Chemistry
1 answer:
jeka57 [31]4 years ago
3 0
<h2>Greetings!</h2>

When balancing an equation, you need to know how many of each atom is on each side.

Left hand side:

1 Al , 1H , 1 Cl

Right hand side:

1 Al , 3 Cl, 2 H

You need to change the numbers on each side until the same amount is on both sides:

Al + HCl → AlC₃ + H₂

Al + 3HCl → AlC₃ + H₂

Al + 3HCl → AlC₃ + 3H₂

Al + 3HCl → AlC₃ + 3H₂

Al + 6HCl → AlC₃ + 3H₂

Al + 6HCl → 2AlC₃ + 3H₂

2Al + 6HCl → 2AlC₃ + 3H₂

Which is now balanced!

The balanced equation again is:

<h3>2Al + 6HCl → 2AlC₃ + 3H₂</h3>
<h2>Hope this helps!</h2>
You might be interested in
Convert the following mole of ratio of elements to empirical formula 2.0 mol of Fe and 2.66 mol of O
Pavlova-9 [17]
Your answer = 3.2 .. thank you
3 0
3 years ago
What happens to molecules when a substance is cooled?​
marissa [1.9K]

Answer:

causes a substance to change from a liquid to a solid.

Explanation:

3 0
3 years ago
Read 2 more answers
Lina has worked hard to gather data for her experiments. With her last set of data she received, she is ready to publish her pap
nika2105 [10]

43.8 has 3 significant figures and 1 decimal.

<h3 /><h3>What are significant figures?</h3>

The term significant figures refer to the number of important single digits (0 through 9 inclusive) in the coefficient of an expression in scientific notation.

All zeros that occur between any two non-zero digits are significant. For example, 108.0097 contains seven significant digits. All zeros that are on the right of a decimal point and also to the left of a non-zero digit are never significant. For example, 0.00798 contained three significant digits.

Hence, 43.8 has 3 significant figures and 1 decimal.

Learn more about significant figures here:

brainly.com/question/14359464

#SPJ1

8 0
2 years ago
What does 3 dots inside a silver ring mean?
Alex73 [517]
It's reported inside the riddles or decorations
8 0
3 years ago
Read 2 more answers
Choose all the answers that apply. Which of the following will decrease reaction rate? increase pressure decrease temperature in
zavuch27 [327]

The following quantities will effect the reaction rate as follows:

1. On increasing Concentration of the reactant: Rate of the reaction will increases.

2. On increasing pressure : Increases the rate of reaction to the side where there are fewer number of molecules.

3.On increasing temperature of an endothermic reaction: Increases the rate of reaction

4. On decreasing temperature of an endothermic reaction: Increases the rate of reaction.

So the answer is increase pressure, decrease temperature, increase concentration will increases the rate of the reaction.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the standard cell potential at 25 ∘c for the reaction x(s)+2y+(aq)→x2+(aq)+2y(s) where δh∘ = -793 kj and δs∘ = -319 j/
    11·1 answer
  • 25. The periodic table is based on an element's A. atomic number. B. molecular size. C. molecular mass. D. atomic mass.
    13·2 answers
  • What is the cause of farsightedness?
    10·2 answers
  • How many moles of sodium hydroxide would react with 1 Mole of sulphuric acid?
    7·1 answer
  • Once two gas particles undergo an elastic collision, the particles
    5·1 answer
  • What are THREE reasons that a creature might use MIMICRY
    10·1 answer
  • How are compounds Similar to elements and how are they different​
    5·1 answer
  • In the atmosphere, it is more common to find two oxygen molecules joined together than to find a single atom of oxygen. Why? Wha
    12·1 answer
  • Rafa places some copper into a solution of sodium chloride. No reaction takes place. Using the displacement theory, explain why
    7·1 answer
  • Assume the following is a neutral atom.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!