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
Predidt the direction and the relative value of the dipole moment of the following bond: C-Cl
WINSTONCH [101]

Answer:

D. C → Cl electronegativity difference > 0.5

Explanation:

The electro negativity of an atom in a compound refers to its ability to attract the electrons of a bond towards itself.

On the Pauling's scale, carbon has an electro negativity value of 2.55 while that of chlorine is 3.16. The difference in electro negativity between the both atoms is about 0.61.

The dipole is aslways directed towards the more electronegative atom. Hence the direction is ; C → Cl

5 0
3 years ago
Zeke knows that there are several layers of sediment underneath his town. The top layer is soil, the next layer is clay, and the
Eddi Din [679]

Answer:

He could add a model of soil layers.

Explanation: C

8 0
3 years ago
Read 2 more answers
Select the correct answer.
faltersainse [42]
The SI unit of time in seconds
4 0
3 years ago
An atom of argon in the ground state tends not to bond with an atom of a different element because the argon atom has (a)a total
Dvinal [7]
The answer is <span>a total of eight valence electrons
hope this help
</span>
5 0
3 years ago
Read 2 more answers
Which of the following elements is the least reactive metal? Sodium, Rubidium, Chlorine, and Magnesium.​
LuckyWell [14K]
First off chlorine is not a metal so you can ignore that one.

Sodium and Rubidium are in group 1 of the periodic table and Magnesium is in group 2.

Group one metals are more reactive than group two because it is harder for the group two metals to lose their 2 valence (outer most) electrons.

As you go down group 1 there is an increase in the reactivity this is because as you go down there is an increase in the atomic radius which leads to more shielding. This weakens the electrostatic forces of attraction making it easier to lose the outermost electrons, therefore they are more reactive.
6 0
3 years ago
Other questions:
  • Jim collects a sample of beach sand during a class trip. After a close inspection of the sample he classifies it as a __________
    5·2 answers
  • Three carbon atoms are linked by single covalent bonds such that they form the shape of a v. all of the unshared electrons form
    5·1 answer
  • Which statement best describes the oxidation numbers of the atoms found in magnesium chloride
    15·1 answer
  • If a liquid has a volume of 5800 mL and you need the mass in Liters, will the number appear to
    11·1 answer
  • 140 g of KCl is dissolved in 600 mL of water. What is the molarity?
    15·1 answer
  • A boy who weighs 30 kg is skateboarding at a speed of 5 m/s. What is the boys kinetic energy?
    15·1 answer
  • Question 3 (2 points)<br> The electromagnetic waves with the lowest frequency are ______ waves.
    13·2 answers
  • The process plants use to make food is called:
    13·2 answers
  • If 10 grams of potassium chlorate decompose to form potassium chloride and oxygen gas inside a 500 mL container at a temperature
    7·1 answer
  • It requires 2,500 joules to raise a certain amount of water (c = 4.186 j/g°c) from 20.0°c to 60.0°c. what is the mass of the wat
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!