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
AURORKA [14]
3 years ago
15

NEED THE ANSWER !!! NOW i have like an hour

Chemistry
1 answer:
ryzh [129]3 years ago
7 0

Answer No 1:

The chemical model that is flawed is:

4 C2 + S8 → 4 CS2

In this reaction, there are more number of carbon atoms in the reactants but lesser number of cabon atoms in the products. For a reaction to be balanced, there should be the same number  of atoms in the reactants and products. Hence, option A does not represent a balanced equation.

<em>Answer No 2:</em>

The correct option is B) The model shows an unbalanced number of carbon atoms.

Consider the equation:

4 C2 + S8 → 4 CS2

In the reactants side of the equation, there are 8 atoms of carbon. In the products side there are only four carbon atoms. This shows that this equation in not balanced because of the carbon atoms.

The number of sulfur atoms remains same before the reaction and after the reaction. There are eight sulfur atoms in the reactants as well as products.

You might be interested in
Why all samples of a given substance have the same intensive properties?
Karolina [17]

Answer:

Every sample of a given substance has identical intensive properties because every sample has the same composition

4 0
3 years ago
A container is filled with helium gas. It has a volume of 2.25 liters and contains 9.00 moles of helium. How many moles of heliu
Darina [25.2K]

Answer: There are 7.4 moles of helium gas present in a 1.85 liter container at the same temperature and pressure.

Explanation:

Given: V_{1} = 2.25 L,     n_{1} = 9.0 mol

V_{2} = 1.85 L,            n_{2} = ?

Formula used to calculate the moles of helium are as follows.

\frac{V_{1}}{n_{1}} = \frac{V_{2}}{n_{2}}\\

Substitute the values into above formula as follows.

\frac{V_{1}}{n_{1}} = \frac{V_{2}}{n_{2}}\\\frac{2.25 L}{9.0 mol} = \frac{1.85 L}{n_{2}}\\n_{2} = \frac{1.85 L \times 9.0 mol}{2.25 L}\\= 7.4 mol

Thus, we can conclude that there are 7.4 moles of helium gas present in a 1.85 liter container at the same temperature and pressure.

7 0
2 years ago
Predict what will be observed in each experiment below. A student sees tiny bubbles clinging to the inside of an unopened plasti
Arisa [49]

Answer:

A.

Explanation:

Squeezing the bottle creates negative pressure inside the bottle because of the plastic's elasticity that will hasten the extraction of the carbon dioxide from the soda.

6 0
3 years ago
Read 2 more answers
Explain the meaning of the terms "saturated," "unsaturated," and "supersaturated"
dmitriy555 [2]
Saturated Solution: A solution with solute that dissolves until it is unable to dissolve anymore, leaving the undissolved substances at the bottom. Unsaturated Solution: A solution ( with less solute than the saturated solution )that completely dissolves, leaving no remaining substances. Supersaturated Solution.
5 0
2 years ago
Which is an example of diffraction?
jeyben [28]
I would say d but I’m not sure
8 0
3 years ago
Other questions:
  • A scientist has two samples of gas: The first sample contains one mole of argon atoms and has a mass of 39.948 g; the second sam
    10·1 answer
  • Which of the following shows both the correct formula and correct name of an acid?
    13·2 answers
  • How can you tell if a substance is a mixture or a compound
    14·1 answer
  • The density of gold is 19.3 g/cm3. what volume would 131.2 g of gold have?
    8·1 answer
  • I really need help in this!!
    8·1 answer
  • 2. Which of the following expressions is generally used for solubility? (1 point)
    12·2 answers
  • Qualitative measurements involve numerical measurements while quantitative measurements record descriptions.
    13·1 answer
  • An object resting on a table weighs 100 N. With what force is the object pushing on the table? With what force is the table push
    12·1 answer
  • Which of the following describes work?
    10·1 answer
  • Why do we have to be careful in handling flammable materials?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!