answer.
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
Softa [21]
2 years ago
10

you are given samples of the substances shown in the table the samples are labeled a b c at room temperature sample a is a solid

sample B is a liquid and sample c is a gas what are the identity samples a b c hint room temperature is about 20°C
Biology
1 answer:
Eddi Din [679]2 years ago
3 0

Answer:

The sample a which is solid at 20°C is "Iodine"

The sample b which is liquid at 20°C is "Bromine"

The sample c which is gas at 20°C is "Chlorine"

Explanation:

Iodine : It starts melting at 113.7°C, so the solid sample found is the iodine. Iodine is present in both solid as well as in vapor state.  Basically it is kept in closed jars. Only when it reaches the temperature above the melting point is starts melting.

Bromine: It is a non metallic element that is present in the liquid state, being a member of halogen group. It is heavy, mobile and dangerous reddish brown liquid. It is corrosive in nature, when comes in contact with human tissue and causes irritation in eye when comes in contact with its vapor.

Chlorine: In room temperature it is gas, as it has weak intermolecular interaction which fails to keep the molecules closely attached.

You might be interested in
When atoms combine to form compounds, they gain,lose,or share
Snezhnost [94]

Answer:

it depends upon the atomic number

Explanation:

if the atomic number is below 4 it will lose electrons

if the atomic number is above 4 it will gain electrons

if the atomic number is 4 it will share its electrons with other atom of the same element make covalent bonds

ex; carbon

7 0
2 years ago
Read 2 more answers
Which process forms salt beds?
Arisa [49]
The answer is C. Evaporation
4 0
1 year ago
Read 2 more answers
Cells pass through a G2 checkpoint before entering mitosis. Ideally, if DNA damage is 2 detected, the cells do not enter mitosis
galina1969 [7]
I think that the answer is D. The cell employs the G2 checkpoint to check for DNA damage and completeness of DNA replication. This is done to ensure that cell division runs smoothly which means that healthy daughter cells, with complete and undamaged DNA, will be produced. At this point, all necessary repairs are applied.  
4 0
1 year ago
In Montana, wild huckleberries rely on bears and other herbivores that consume their fruit to spread their seeds. As a result, t
yKpoI14uk [10]

Answer:

The consumption efficiency of huckleberry is high, like in forest ecosystem.

Explanation:

Huckleberry is a term mainly used to describe numerous variations of plants with different colored small berries.  These are a rich source of nutrition for wild bears of Montana.

These plants are residents of acidic and infertile vegetative areas, that is why these species do not grow in Antarctica, central Greenland and parts of the high arctic.

3 0
1 year ago
Figure 1 represents a segment of DNA. Radiation can damage the nucleotides in a DNA molecule. To repair some types of damage, a
Ne4ueva [31]

Answer:

Explanation:

This question is incomplete. However, what is described in this question is a method of DNA damage repair mechanism. The method described is called base excision repair. Generally, glycosylases play important roles in base excision repair (as they detect and remove these damaged bases).

One thing that can be considered while identifying the bond to be broken is the codon that will be formed after the removal of base. If this codon (a three base sequence) will still produce the same protein as when a normal cytosine was present.

NOTE: During this base excision repair, a glycosylase will detect and remove the damaged cytosine. Once removed, the remaining nucleotide backbone (of the removed cytosine) is also removed and the gap is filled and sealed by other enzymes in this repair mechanism.

6 0
2 years ago
Other questions:
  • Photosynthetic algae create sugars that will eventually be broken down during which process
    13·1 answer
  • The amount of guanine in a organism always equals the amount of
    7·1 answer
  • Carbohydrates, such as glucose, are excellent sources of immediate energy for living organisms. More complex carbohydrates, such
    14·2 answers
  • Why is the Earth’s core made up mainly of iron while the crust contains mostly silicate minerals?
    12·2 answers
  • Use the following information to answer Questions 18 through 20. Despite its name, the Pacific sea horse is actually a type of f
    13·2 answers
  • Students performed an experiment using eggs to observe the effect of osmosis on cells. The egg represented a typical cell. Befor
    6·2 answers
  • "the somatic and autonomic nervous systems are the two major divisions of the _____ nervous system."
    13·2 answers
  • In cellular respiration, a series of molecules forming an electron transport chain alternately accepts and then donates electron
    11·1 answer
  • A cross between a tomato plant that was excessively leafy (l) and resistant to leaf mold (C) and a tomato plant with normal leav
    6·1 answer
  • Part B: Simulate Deforestation Next, you’ll build a simulation showing the changes in a portion of the forest over time. This sa
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!