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
Mnenie [13.5K]
4 years ago
10

Describe how you could use properties to determine whether or not a sample of a substance is pure.

Biology
2 answers:
chubhunter [2.5K]4 years ago
8 0

Answer:

A pure solid has a constant/fixed melting point. A pure liquid has a constant/fixed boiling point. A pure gas may be made up of individual atoms

ozzi4 years ago
6 0

Answer:

It depends the substance

Explanation:

You might be interested in
What organism is multicellular,makes it own food and is unable to move around its environment
ankoles [38]
Plants would be the only option, they have no legs so they can't move. They are producers and make its own food and unable to move around its environment. 
3 0
3 years ago
Read 2 more answers
Achromoplast stores while a leucoplast stores A. starch; pigments B. chlorophyll; starch C. pigments; chlorophyll D. pigments; s
just olya [345]

Answer:

D. pigments; starch.

Explanation:

A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.

A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.

In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles.

A chromoplast can be defined as a heterogeneous organelle or plastids that is typically responsible for pigment synthesis and their storage in a plant. The pigments include red, orange, yellow or chlorophyll.

On the other hand, leucoplast is a colorless plastid i.e plastic lacking photosynthetic pigments that are typically found in storage organs, underground stems, cotelydons, roots, tubers, seeds, or endosperm etc., used for the storage of starch in the absence of sunlight.

Hence, a chromoplast stores pigments while a leucoplast stores starch.

5 0
3 years ago
According to research on behavioral decision theory, adolescents often decide to engage in behavior that seems risky to adults b
Genrish500 [490]

Answer:

A)cannot consider as many consequences for their actions as do adults.

B)have thinking processes that are still predominantly preoperational.

C)place a different value on the possible consequences than do adults.

D)wish to assert their independence from adults in every possible way.

The CORRECT ANSWER IS C)

C)place a different value on the possible consequences than do adults.

Explanation:

Diverse research have shown that adolescents place a different value on the possible consequences of risk in specific areas than adults do but that they perceive the risks as it doesn't deny adolescents from undertaking these risk-taking behavior.

Neuroimaging research reveals that adolescents may have a higher emotional satisfaction with risk-taking behavior. This satisfaction can expose adolescents to pertake in behavior not minding the risks attached.

In the adult brain, we can pinpoint that the limbic section of the brain (emotion center) and the prefrontal cortex (judgment and reasoning center) are well established when perceiving images that shows risks unlike in the adolescent brain, after perceiving the same risks, the limbic area is well established, with little or no activity in the prefrontal cortex. Such kind of emotional-cognitive asynchrony could cause an adolescents to misjudged other’s feelings and emotions, whereas emotional-physical asynchrony could lead to adolescents being considered as older than their emotional level of development.

4 0
4 years ago
Please help I will make you Brainliest​
vodomira [7]
Answer: yes

Explanation:
6 0
3 years ago
What will a hypothesis become if it supported by repeated experimentation
german

Answer:

A hypothesis can become a scientific theory if it is supported by repeated experimentation.

6 0
3 years ago
Other questions:
  • FAST PLEASE HELP ME
    13·2 answers
  • if an offspring is produced through sexual reproduction, the offspring’s genetic material is always -?
    5·2 answers
  • Why must vitro observation be confirmed in vivo​
    9·2 answers
  • A food can be labeled as "organic" if ________% of its ingredients are organic.
    8·1 answer
  • Why do communites change over time?
    11·2 answers
  • Environmental science includes the study of all of the following except:
    14·1 answer
  • How are muscles constructed?
    10·2 answers
  • 17) If a substance has a pH of 14, it is...
    14·2 answers
  • The process of cellular respiration
    15·1 answer
  • Climate change in the form of global warming (an abiotic factor) has slowly decreased habitat for the arctic seals. What are the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!