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
BaLLatris [955]
3 years ago
7

Scientists Pam and Alejandro were discussing a liquid found in the science lab that was missing it's label. In classifying the u

nknown liquid, they first needed to determine if the liquid is a mixture or pure substance. How is a pure substance different from a mixture
Mixtures cannot be separated by physical means.


A pure substance is heterogeneous.


Pure substances cannot be separated by physical means.


A mixture is made of one substance.
Chemistry
1 answer:
Marat540 [252]3 years ago
6 0

The correct answer is option C. Pure substances cannot be separated by physical means.

Matter is composed of mixtures and pure substances. Pure substances can be further simplified into elements and compounds. Mixtures are physically combined of different components. Pure substances cannot be separated by physical means whereas mixtures can be separated by physical means such as decantation, sedimentation, filtration, distillation and more.

You might be interested in
Ch4+2o2=co2+2h2o how many moles of methane are in 20 liters of methane?
horsena [70]

Answer:

See below, please

Explanation:

1 mol CH4 ——>2 mol H2O=2x18 g/mol= 36 g

The question is not clear. You should tell us the concentration of CH4, methane.

8 0
2 years ago
Read 2 more answers
How do you draw 5 arrows showing uniformity
makkiz [27]

Answer:

I  don't really know what that is so here is a picture of it

Explanation:

4 0
2 years ago
Which of the following months would be the darkest at the South Pole?
son4ous [18]

Answer:

December.

Explanation:

6 0
3 years ago
How many moles of dipyrithione contain 8.2 x 10^24 atoms of N
Pani-rosa [81]
Dipyrithione is a chemical with formula, C₁₀H₈N₂O₂S₂. This means that each molecule of the substance has two (2) atoms of nitrogen. By using the dimensional analysis and Avogadro's number, equal to 6.022 x 10²³, we calculate for the answer as shown below.

    n = (8.2 x 10²⁴ atoms N)(1 molecule dipyrithione/ 2 atoms of N)(1 mole dipyrithione/ 6.022 x 10²³ molecules dipyrithione)

Simplifying,
  n = 6.8 moles dipyrithione

<em>ANSWER: 6.8 moles</em>
4 0
3 years ago
a pro golfer hits 45.0-gram golf ball, giving its speed of 75.0 m/s. what is the momenntum has the golfer given to the ball
AfilCa [17]
Momentum = mass x velocity. 45g = 0.045kg. 0.045 x 75 = 3.375 kgm/s
6 0
2 years ago
Other questions:
  • Margarine is usually made by a process called ________, in which hydrogen atoms are added to unsaturated fatty acids found in ve
    10·1 answer
  • What do dipole-dipole forces do?
    15·2 answers
  • The answer that he gave was wrong
    6·1 answer
  • How many total atoms are there in 58.7 g of carbon dioxide
    5·1 answer
  • 10) A hydrobromic acid (HBr) solution has a molar concentration of 0.0085 M. Calculate the
    9·1 answer
  • Why does water work bad with oil? Explain
    7·2 answers
  • Propene also reacts with bromine CH2CHCH3+Br2-&gt; C3H6Br2
    6·1 answer
  • Identify the missing information for each atom or ion. Note that the atoms and ions are not necessarily neutral.
    15·1 answer
  • Which phrase best describes the path of a light wave?
    8·2 answers
  • elements combine in three general ways. in blank compounds, electrons are transferred from one element to the other, whereas in
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!