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
Kitty [74]
3 years ago
13

A chemist is given a liquid sample of an unknown substance. The substance can't be separated into it's components by filtration,

evaporation, distillation, paper chromatography, or any other physical means. The chemist then tries yo decompose the substance by a chemical change but can't. Based on the chemist's results, which of the following best describes the unknown sample?
A. Elements
B. Mixture
C. Compound
D. Suspension
Chemistry
2 answers:
iren2701 [21]3 years ago
6 0
Compound IS THE answer
Scorpion4ik [409]3 years ago
6 0

Answer:

A) Elements

Explanation:

A mixture is a composite of two or more components that are combined physical and not through any chemical means. While a suspension is a mixture of a liquid and solid particles. Therefore, in both cases the components can be separated by some physical means.

A compound is a composite of two or more atoms which can be decomposed into simpler systems through chemical processes.

However, element is a single atom which can be neither be simplified any further by physical or chemical means.

You might be interested in
En el laboratorio, un vaso precipitado vacío tiene una masa de 0,50 kg. Este vaso se llena con 300 cm3 de una solución saturada
faust18 [17]

Answer:

Density = 0.0007667 Kg/cm³

Explanation:

Given the following data;

Mass of empty beaker = 0.50 kg

Volume of solution = 300 cm³

Mass of glass+solution = 730 g

To find the density of the solution in the glass;

First of all, we would convert the value in grams to kilograms.

Conversion:

1000 grams = 1 kg

730 = X kg

Cross-multiplying, we have;

X = 730/1000 = 0.73 kg

Next, we would determine the mass of the solution.

Mass of solution = Mass of glass+solution - Mass of empty beaker

Mass of solution = 0.73 - 0.50

Mass of solution = 0.23 kg

Lastly, we would solve for the density of the solution;

Density can be defined as mass all over the volume of an object.

Simply stated, density is mass per unit volume of an object.

Mathematically, density is given by the formula;

Density = \frac {mass}{volume}

Substituting into the formula, we have;

Density = \frac {0.23}{300}

Density = 0.0007667 Kg/cm³

4 0
3 years ago
What is a mutation?
Masja [62]

Answer:

the answer is A hope this helps

3 0
3 years ago
Geologic and fossil evidence suggests that all landmasses were once connected in a supercontinent named PangaeaWhat geologic phe
Leni [432]

Answer:

A

Explanation:

continental drift

4 0
3 years ago
Read 2 more answers
Match the image with the correct invention
PolarNik [594]

Answer:

1. Watt stream engine

2. McCormick reaper

3. Fulton steamboat

These are the correct answers.

Have A good day!!  :)

8 0
3 years ago
Read 2 more answers
Help me its due soon thanks
UkoKoshka [18]

Answer:

B

Explanation:

The gravity accelleration values are the same for both planets.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which option is a compound?<br> carbon<br> O carbon dioxide<br> O air<br> O oxygen
    14·1 answer
  • Which of the following has a central atom that exceeds the octet rule? PCl5 BeF2 H2S CO2
    8·1 answer
  • The definition to reactivity with vinegar
    13·1 answer
  • Please helpppppppppp
    12·2 answers
  • How many moles of N are in 0.203 g of N2O?
    14·2 answers
  • Suppose you have 11.0 mol of (CH4) and 9.0 mol of (O2) in a reactor. Calculate the largest amount of CO2 that could be produced
    10·1 answer
  • Which action is a change in state
    11·1 answer
  • "What product of the reaction of methane has an impact on the environment?"
    15·2 answers
  • Can someone plz help me ? :(
    11·1 answer
  • A bar of copper (Copper = 0.385 J/g.°C) and a bar of aluminum (Aluminum = 0.897 J/g.°C) have the same mass. Which requires more
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!