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
sergejj [24]
3 years ago
5

Please help, timed test, will give brainliest

Chemistry
1 answer:
OlgaM077 [116]3 years ago
4 0

Answer:

The answer to your question is letter B

Explanation:

A.)                     2 AgCl + Na2S ⟶ 2 Ag2S + 2 NaCl

                Reactants           Elements              Products

                      2                         Ag                         4

                      2                          Cl                          2

                      2                          Na                         2

                      1                            S                           2

This reaction is unbalanced

B.)                       2 AgCl + Na2S ⟶ Ag2S + 2 NaCl

                Reactants           Elements              Products

                      2                         Ag                         2

                      2                          Cl                          2

                      2                          Na                         2

                      1                            S                           1

This reaction is balanced

C.)                         AgCl + Na2S ⟶ 2 Ag2S + 2 NaCl

                Reactants           Elements              Products

                      1                         Ag                         4

                      1                          Cl                          2

                      2                          Na                         2

                      1                            S                           2

This reaction is unbalanced

D.)                2 AgCl + 2 Na2S ⟶ Ag2S + NaCl

                Reactants           Elements              Products

                      2                         Ag                         4

                      2                          Cl                          1

                      4                          Na                         1

                      2                            S                          1

This reaction is unbalanced

You might be interested in
CAN SOMEONE HELP ME!!!
NISA [10]

Answer:

I think D

Explanation:

4 0
3 years ago
Read 2 more answers
What us energy stored in an object called​
Vikentia [17]

Answer:

potential energy

Explanation:

4 0
3 years ago
Read 2 more answers
Explain reaction of metals with the following with the help of chemical equations; i) with acids ii) with oxygen iii) with water
Cerrena [4.2K]

i. When an acid reacts with metal, a salt and hydrogen are produced:

ii. When oxygen and metal react,  metal oxide forms also known as rust

iii. Acid and water produce hydroxide ions

3 0
3 years ago
I need help!!! Calculating pH, pOH, [H+] and [OH-]
Advocard [28]
Find the hydroxide ion concentration of a solution with a pOH of 5.90. To solve this, use a scientific calculator and enter 5.90 and use the +/- button to make it negative and then press the 10x key.
4 0
3 years ago
Predict the number of peaks that you would expect in the proton-decoupled 13C spectrum of each comound.
dangina [55]

Answer:

To interpret a 13C-NMR spectrum we will use some standards very simple. A  13C-NMR spectrum gives us the following information:

1. Indicates the number of non-equivalent carbons in the molecule.

2. Measuring the chemical shift we can intuit the environment

electronic and determine the next functional groups.

3. In this case we cannot count on integration since the different

carbons have different relaxation times.

The number of peaks in the spectrum indicates the number of types of carbon present in the analyzed substance.

The factors that influence the chemical shift of the signals in the 13C NMR are:

  • electronegativity of carbon bound groups
  • carbon hybridization

Explanation:

The nuclear magnetic resonance of C13 is complementary to that of H1. This technique is used to determine the magnetic environment of carbon atoms.

4 0
3 years ago
Other questions:
  • What kinds of constraints do EVA design solutions usually have?
    9·2 answers
  • Which of the following statements is true? A. Some plants are considered abiotic components of an ecosystem. B. Animals are alwa
    8·2 answers
  • What happens during the change of matter from solid to liquid? (please explain in the shortest way)
    11·1 answer
  • HELP PLEASE WILL GIVE BRAINLIEST ANSWER
    15·1 answer
  • Where do i find the grad? What is the Grad???
    12·1 answer
  • Number 7 plz tysm guys
    5·2 answers
  • Why do elements that have positive ions occur on the left side of the periodic table?
    5·1 answer
  • Heating a substance____the speed at which molecules move
    15·2 answers
  • Fast slow , mixed ?
    11·2 answers
  • 2. Which of the following is/are TRUE regarding net ionic equations?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!