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
Basile [38]
3 years ago
13

I need help with problem 103 all of the questions.

Chemistry
1 answer:
AfilCa [17]3 years ago
4 0
A. is decomposition so HCL = H2 + Cl2

not balanced cause hcl needs 2

2HCL = H2 + Cl2

balanced

b. Br2 + Al-i = AlBr3 + I2 single rep.

not balanced since br need 3 so watch carefully cause many changes needed


 3Br2 + Al-i = AlBr3 + I2 not right is unbalanced so make it 2

3Br2 + Al-i = 2AlBr3 + I2 now left Al is unbal. so make 2 there

3Br2 + 2Ali = 2AlBr3 + I2 

Balanced

C. Na + S = Na2S synthesis reaction is not bal. left Na needs 2

2Na + S = Na2S  balanced.

You might be interested in
In the ground state, which atom has a completely filled valence electron shell?(1) C (2) V (3) Ne (4)Sb
AVprozaik [17]
The answer is (3)Ne. Usually, the elements belongs to group 18 all have completely filled valence electron shell. Among the four elements carbon, vanadium, neon and antimony, only neon belongs to group 18.
7 0
3 years ago
Read 2 more answers
In the compound CO2, how many lone pairs are on the central atom?
Cloud [144]
There are 4 lone pairs of electrons present in the carbon dioxide molecule 
4 0
3 years ago
Are humans pro-karyotic or eukaryotic?
barxatty [35]

Answer:

eukaryotic

Explanation:

all human cells—including those found in the brain, the heart, the muscles, and so on—are also eukaryotic.

3 0
3 years ago
Given that hclo4 is a strong acid, how would you classify the basicity of clo−4?
Mandarinka [93]
As a conjugate base of a strong acid,ClO4-would be classified as having a negligible basicity. The basicity of a chemical species is normally expressed by the acidity of the conjugate acid. The basicity of an acid is the number of hydrogen ions, which can be produced by one molecule of the acid. 
8 0
3 years ago
Think of two organisms.
Alina [70]

DNA is one and Grow and Develop i think i could be wong  let me know i can read up on it some more


4 0
3 years ago
Other questions:
  • How does heat affect a water droplet's state of matter
    14·1 answer
  • Solids have:<br> fixed shape<br> O A and B<br> fixed size<br> neither A nor B
    9·1 answer
  • Which contains more atom, a mole of silver atoms or a mole of gold atoms?
    6·2 answers
  • Show the ________ or the outer level of electrons, the number which is given
    13·1 answer
  • Which is usually associated with a faster reaction rate? A. shaking pepper into the reactants B. removing heat energy from the r
    7·1 answer
  • 1. Explain what it means when we say a substance is magnetic. (HINT: Be sure to mention the role of the Electrons)
    5·1 answer
  • Can any of you unscramble the word mmncotiuy
    13·2 answers
  • Calculate the mass of solid sodium that's needed to fully react with 4.0 L of chlorine gas at STP.
    10·1 answer
  • Can somebody please help me!!!!
    13·1 answer
  • 3<br>Solve and derive the unit for Power​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!