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
abruzzese [7]
3 years ago
6

A chemical reaction was used to separate a sample into its components. What conclusion about the sample can be formed based on t

he technique used? (4 points)
a It was a pure substance.
b It was a compound.
c It was a heterogeneous mixture.
d It was a homogeneous mixture
Chemistry
2 answers:
Anni [7]3 years ago
7 0

Answer:

b It was a compound.

Explanation:

<em>A chemical reaction was used to separate a sample into its components. What conclusion about the sample can be formed based on the technique used? </em>

<em>a It was a pure substance.</em>  NO. If the pure substance is a compound, this option could be. However, if the pure substance is a simple substance, it could not be separated into its components.

<em>b It was a compound. </em> YES. Compounds can be separated into pure substances using chemical reactions. For instance, H₂O → H₂ + 1/2 O₂

<em>c It was a heterogeneous mixture.</em>  NO. Heterogeneous mixtures can be separated into homogeneous mixtures using physical processes such as sieving, filtration, etc.

<em>d It was a homogeneous mixture.</em> NO. Homogeneous mixtures can be separated into pure substances using physical processes such as distillation, chromatography, etc.

frez [133]3 years ago
3 0

It is A I took a test just like this yesterday.

You might be interested in
What type of consumer are bears?
sashaice [31]
Bears are omnivores (and scavengers), meaning they eat both plants and animals.
it can be both a primary consumer (if it eats plants) and secondary & tertiary consumers (if it eats a plant-eating animal). so it depends on what it eats.
5 0
3 years ago
In reversible reaction when do forward reactions take place
kari74 [83]

Answer:

that is true. because reversible react is take place in forward and backward reaction

7 0
3 years ago
CHEM HELP!
sweet [91]

So let's convert this amount of mL to grams:

\frac{13.6g}{1mL}*1.2mL=16.32g

Then we need to convert to moles using the molar weight found on the periodic table for mercury (Hg):

\frac{1mole}{200.59g}*16.32g=8.135*10^{-2}mol

Then we need to convert moles to atoms using Avogadro's number:

\frac{6.022*10^{23}atoms}{1mole} *[8.135*10^{-2}mol]=4.90*10^{22}atoms

So now we know that in 1.2 mL of liquid mercury, there are 4.90*10^{22}atoms present.

4 0
3 years ago
A 35,000 Newton car runs up a hill that is 45.5 meters high in 1.6 seconds. what power did it exert?
Evgesh-ka [11]

Answer:

995.313KW

Explanation:

the explanation is in the picture

please like and Mark as brainliest

7 0
3 years ago
Electrolysis is an endothermic process when an electric current is passed through water and separates it into hydrogen and oxyge
azamat

Answer:

IM SORRY I NEED THIS ONE

Explanation:

pls dont report

3 0
3 years ago
Other questions:
  • Two common pain relievers, acetylsalicylic acid (aspirin) and acetaminophen are shown below. identify the functional groups in b
    8·1 answer
  • I need help with 14 and 15 please!
    7·1 answer
  • I'm not sure on the answer for this question
    6·1 answer
  • Certain "rules" of chemistry are used to simplify concepts when in fact sometimes these rules are often "broken." Place the prop
    7·1 answer
  • The Brownian Motion prevents colloid particles from settling out of a solution. Please select the best answer from the choices p
    9·1 answer
  • Which of the following is possible for aluminum to have a full outer shell? Question 13 options: Three electrons are gained, cre
    13·2 answers
  • What is the stereochemistry of the alcohol produced in the reaction of (S)-3-iodoheptane with NaOH?
    7·1 answer
  • What’s the answer???
    12·1 answer
  • Given that XeF4 reacts with water to form explosive XeO3, chemists would not handle it near water. However, why would you still
    9·1 answer
  • Write each formula to solve for density, volume and mass.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!