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
TiliK225 [7]
3 years ago
7

Which of the following observations would indicate that a material is a pure substance

Chemistry
2 answers:
Lena [83]3 years ago
3 0
What is the following
yaroslaw [1]3 years ago
3 0

It does not dissolve in water.

It changes color after heating.

It cannot be physically broken down into different types of atoms.

It can be physically broken down into different types of molecules.

^the options

You might be interested in
Name two drying agents that can be use to dry hydrogen gas​
natulia [17]
CaCl2, Na2SO4, MgSO4 are three drying agents that can be used to dry hydrogen gas
4 0
3 years ago
Take the following out of scientific notation 3.74 x 10^7<br> Please help me
erastovalidia [21]

Answer:

37400000000 is the <em>ans</em>

5 0
3 years ago
Why must there be two chlorine atoms for every one calcium atom
Nady [450]

Answer:

There must be two Chlorine atoms for every one Calcium atom in order to fulfill Chlorine's octet rule and pair Calcium's unpaired electrons.

Explanation:

Calcium has two unpaired electrons in its Lewis dot structure, while Chlorine has one unpaired electron.

<em>So why can't we just make a double bond for </em><em>one</em><em> Chlorine?</em>

Chlorine has seven valence electrons, so once it shares electrons with Calcium, the octet rule is accomplished, and no more pairs can be made.

4 0
3 years ago
Please answer this question<br>thank you ^^​
alexgriva [62]

Answer:

its number 1 sp^3

Explanation:

3 0
1 year ago
Read 2 more answers
A company employs several high school students in its food-packaging factory. All the students are below 17 years of age. Which
leonid [27]

Answer:

Fair Labor Standards Act

Explanation:

It is correct. I just took the test on Clever

8 0
2 years ago
Read 2 more answers
Other questions:
  • The​ half-life of​ carbon-14 is 5600 years. if a piece of charcoal made from the wood of a tree shows only 6363​% of the​ carbon
    10·1 answer
  • Near the shore ,winds tend to blow out toward the water at night.what drives this process
    5·2 answers
  • Joe is the best baseball player in the world. He can throw a baseball faster than anyone. If the mass of the baseball was increa
    10·2 answers
  • 32.7 grams of water vapor takes up how many liters at standard temp and pressure (273 K and 100 kPa)
    13·1 answer
  • What causes a pendulum to move in an extended amount of time?
    9·1 answer
  • Will give brainliest for correct answer and quick answer! help ;w;
    12·1 answer
  • What conversion factors<br> determine the number of<br> molecules from the mass of a<br> compound?
    13·1 answer
  • In a person's body, sulfur oxides combine with water vapor in the BLANK to form sulfuric acid.
    6·1 answer
  • Which of these is an example of chemical change
    12·1 answer
  • Which statement best describes the role of oxygen in cellular respiration?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!