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
Ulleksa [173]
2 years ago
14

Please answer me!!!! ​

Chemistry
1 answer:
Dmitry [639]2 years ago
4 0

Answer:

1) Starting boiling point is 100°C

Explanation: Boiling point is a constant temperature. At 10 minutes, substance L boils constantly at 100°C till 14 minutes.

2) The temperature of substance L steadily increases from 0 to 8 minutes. Then it is constant from 10 to 14 minutes.

3). Substance L is a pure substance. Substance L is pure water because pure water boils at 100°C

{}

e):

Substance L is Water

Reason: Substance L has boiling point of 100°C as well as water

You might be interested in
In 2021, you were given a 100. g wine sample to verify its age. Using tritium dating you observe that the sample has 0.688 decay
nikdorinn [45]

Answer:

1984

Explanation:

Given the formula;

0.693/t1/2 = 2.303/t log (Ao/A)

Where;

t1/2 = half life of the radioactive isotope

t= age of the wine

Ao= initial activity of the wine

A= activity of the at time = t

0.693/12.3 = 2.303/t log (5.5/0.688)

0.693/12.3 = 2.079/t

0.056 = 2.079/t

t= 2.079/0.056

t= 37 years

The wine was produced 37 years ago which means that it was produced in the year 1984

7 0
3 years ago
Given the relative abundance of the following naturally occurring isotopes of oxygen, calculate the average atomic mass of oxyge
STatiana [176]

The average atomic mass of oxygen is 16 amu.

According to the formula of average atomic mass of oxygen

= \frac{Sum of (Mass of each isotope)(relative abundance)}{100} \\\\= \frac{((16)(99.76)+(17)(0.037)+(18)(0.204)}{100} \\\\=16 amu

6 0
4 years ago
Read 2 more answers
Which of the following describes what scientists expect to happen every time under certain conditions?
Ber [7]
I believe it is d. scientific law
7 0
3 years ago
would you select water or gasoline to try dissolving the following : table sugar, motor oil, rubber from tire marks, adhesive re
Damm [24]
To know the answer, we determine the polarities of the solvent we have. Water is polar and gasoline is nonpolar. We remember that like dissolves like. Therefore, the answers are:

<span>table sugar = water
motor oil = gasoline
rubber from tire marks = gasoline
adhesive residue from a packing tape = gasoline</span>
5 0
4 years ago
Read 2 more answers
A mixture that settles out upon standing is?
arlik [135]

The answer would be: C) Suspension

<span>Suspension- A mixture from which some of the particles settle out slowly upon standing.

-Heterogeneous
-Greater than 1000 nm in particle size
-Can be filtered
-Can scatter light
-Cloudy-Opaque</span>

4 0
3 years ago
Other questions:
  • Lisa is using a spring scale to measure the weight of a wooden block. She weighs the wooden block a total of five times with the
    14·1 answer
  • The rate law for the reaction NH4(aq)+ + NO2(aq)- → H2O(l) + NO2(g) is rate = k [NH4+][NO2-], and the value of k is 2.7*10-4 M-1
    8·2 answers
  • 1 pt
    7·1 answer
  • Zinc is used as a coating for steel to protect the steel from environmental corrosion. If a piece of steel is submerged in an el
    5·1 answer
  • What does "A" represent in a the<br> standard form of a double<br> replacement reaction?
    9·1 answer
  • Identify the type of interactions involved in each of the following processes taking place during the dissolution of sodium chlo
    11·1 answer
  • All living things are made of​
    14·2 answers
  • Blood is a mixture of cells and a liquid called
    12·1 answer
  • Sound and light are both found as (4)
    6·1 answer
  • If 25.0 g of NH₃ and 43.1g of O₂ react in the following reaction, how many grams of NO will be formed?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!