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
larisa [96]
3 years ago
5

Help?

Chemistry
2 answers:
trasher [3.6K]3 years ago
7 0
Separate the components of a mixture.
never [62]3 years ago
6 0
Separate components of mixtures.
You might be interested in
The state of water is determined solely by the conditions of _____.
bagirrra123 [75]
Gas !!
-
-
Gas
Gas
Gas
4 0
3 years ago
Read 2 more answers
Balance NaOH + H3PO4->H2O + Na3PO4
Masteriza [31]

Answer:

3NaOH + H3PO4 ---> 3H2O + Na3PO4

Explanation:

7 0
3 years ago
You are working in your laboratory and decide to do some cleaning. You find a test tube with some brown substance congealed at t
Anna [14]

Answer:

  • <em>The mystery substance is</em> <u>C. Bromine (Br) </u>

Explanation:

<em>Argon (Ar) </em>is a noble gas. Whose freezing point is -189 °C (very low), thus it cannot be the frozen substance. Also, it is not reactive, thus is would have not reacted with iron. Hence, argon is not the mystery substance.

<em>Scandium (Sc) </em>is a metal from group 3 of the periodic table, thus is will not react with iron. Thus, scandium is not the mystery substance.

Both <em>bromine</em> and <em>iodine</em> are halogens (group 17 of the periodic table).

The freezing point of bromine is −7.2 °C, ​and the freezing point of iodine is 113.7 °C. Thus, both could be solids (frozen) in the lab.

The reactivity of the halogens decrease from top to bottom inside the group. Bromine is above iodine. Then bromine is more reactive than iodine.

Bromine is reactive enough to react with iron. Iodine is not reactive enough to react with iron.

You can find in the internet that bromine vapour over hot iron reacts  producing iron(III) bromide. Also, that bromine vapors are red-brown.

Therefore, <em>the mystery substance is bromine (Br).</em>

7 0
3 years ago
Which is an example of convection?
mixas84 [53]

Answer:

it is C

Explanation:

4 0
3 years ago
A 20 N net force acts on an object with a mass of 2.0 kg. What is the object's acceleration? (PLS HELP lol)
anzhelika [568]

Explanation:

Force = Mass × Acceleration

20 = 2.0 × A

A = 20/2 = 10m/s^2

8 0
3 years ago
Other questions:
  • Write orbital diagrams (boxes with arrows in them) to represent the electron configurations of carbon before and after sp hybrid
    7·1 answer
  • Draw the most stable resonance structure for the intermediate in the electrophilic aromatic bromination of aniline, anisole, and
    10·1 answer
  • Convert the pressure 0.840 atm to mm Hg
    11·1 answer
  • HELP MEEEE ASAP!!! Answer these questions based on what you learned from the passage. You can assume any body structure comes fr
    6·1 answer
  • If a mixture looks smooth and the same throughout it is probably what
    13·1 answer
  • How does the use of synthetic oil impact the natural resource from which they are derived?
    12·1 answer
  • 6. The concentration of a solution is : a)The amount of solvent needed to fully dissolve a solute b)The measurement of how large
    15·1 answer
  • A bird building a nest for its young is a reproductive strategy. Based on this example, what do you think the term “reproductive
    6·2 answers
  • Calculate the acid dissociation constant Ka of a 0.2 M solution of weak acid that is 0.1% ionized is ________.
    7·1 answer
  • Acetylene gas (ethyne; HC≡CH) burns with oxygen in an oxyacetylene torch to produce carbon dioxide, water vapor, and the heat ne
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!