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
Anettt [7]
4 years ago
12

Which substance can't be broken down by chemical means?

Chemistry
1 answer:
irina1246 [14]4 years ago
5 0
Antimony cannot be broken down by chemical means because it is an element, a principle building block of matter. All other choices are compounds, which can be separated if put through enough stress to break the bonds between the atoms.
You might be interested in
If the pressure on a 1.04 L sample of gas is doubled at constant temperature, please compute the new volume of gas: __
natulia [17]

Answer:

0.52 L.

Explanation:

Let P be the initial pressure.

From the question given above, the following data were obtained:

Initial pressure (P1) = P

Initial volume (V1) = 1.04 L

Final pressure (P2) = double the initial pressure = 2P

Final volume (V2) =?

The new volume (V2) of the gas can be obtained by using the the Boyle's law equation as shown below:

P1V1 = P2V2

P × 1.04 = 2P × V2

1.04P = 2P × V2

Divide both side by 2P

V2 = 1.04P /2P

V2 = 0.52 L

Thus, the new volume of the gas is 0.52 L.

6 0
3 years ago
Time (sec) [CH4] (mol/L)
Oxana [17]

Based on the table and the equation of reaction; the

  • rate of consumption of oxygen between time 20 and 40s is 0.005 M/s
  • rate of consumption of oxygen between time 40 and 60s is 0.0025 M/s

<h3>What is rate of a reaction?</h3>

The rate of a reaction is the rate at which reactants molecules are consumed or products are formed.

  • Rate of reaction = change in concentration of reactants or products/ time taken

Based on the equation of reaction, the rate of consumption of oxygen is equal to the rate of consumption of methane.

Thus. rate of consumption of oxygen from time 20 seconds to time 60 seconds is calculated as follows:

Rate between 20 and 40 = 1.0 - 0.9/20

  • Rate of consumption of oxygen = 0.005 M/s

Rate between 40 and 60 = 0.9 - 0.85/20

  • Rate of consumption of oxygen = 0.0025 M/s

Therefore, the rate of consumption of oxygen decreases with time.

Learn more about rate of reaction at: brainly.com/question/25724512

8 0
3 years ago
The flow of matter through the carbon and nitrogen cycle can be disrupted! The video clip explained an example in both the carbo
shutvik [7]
The only one who is the president of the United society rejects the bill and brown sage green green tomatoes green green brown sage green green tomatoes green orange orange cherry orange orange lime green
4 0
3 years ago
Three metal spheres are placed next to each other as shown in the picture. A has two times the mass of B. C has one-third the ma
Tom [10]

You didn’t list the statements.

3 0
4 years ago
Read 2 more answers
How can you find density mathematically ?
Leni [432]

Answer:

d=m/v

Explanation:

density equals mass over volume. you take your mass and put it in the numerator and your volume in the denominator. You then divide the numbers and round to the nearest tenth or hundredth.

6 0
3 years ago
Other questions:
  • Describe how formal charges are used to choose between possible molecular structures
    9·1 answer
  • There are four hundred participants in the local Thanksgiving 5K race. If 51% of the participants are female, what is the ratio
    15·1 answer
  • An unknown compound has a percent composition of 52.10% potassium, 15.8% carbon, and 32.1% oxygen. The molar mass of the compoun
    5·2 answers
  • In the science lab, students are testing solutions as acids or bases. the ph level of solution "x" was determined to be an 8. wh
    9·1 answer
  • Can anyone think of an analogy for a synthesis reaction?
    9·1 answer
  • Which energy source produces carbon dioxide?
    9·1 answer
  • Help me answer the question please I don’t get it this is earth science not chemistry.
    5·1 answer
  • Match each state of matter with the statement that best describes it.
    10·2 answers
  • A robber is in a fast car, hurrying away from the scene of his crime. His car can go at 150 km/h. He will be safe if he can reac
    7·1 answer
  • Plz help i’m in class and i’m about to cry i don’t get it.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!