A student is examining the liquid mercury inside a thermometer. If the liquid is composed of only mercury atoms, what can the student conclude?


A :the liquid is an impure substance because it is in a liquid state.

The liquid is a pure substance because it is made up of elements

The liquid is an impure substance because it is inside a thermometer.

The liquid is a pure substance because it is made up of mixtures.

Answers

Answer 1

Answer:

b

Explanation:

DID IT

Answer 2

Mercury is used in thermometers to estimate temperatures. Liquid mercury composed of Hg atoms is a pure substance that consists of single elements. Thus, option B is correct.

What are pure substances?

Pure substances are chemicals that are matter and have been known to have distinct chemical properties because of their constant and definite composition. The physical methods of separation can not be used to separate the pure substances.

The liquid mercury is a pure substance as it has been composed of only one type of elemental atom Hg. All of its composition has been carrying the Hg atoms uniformly that possess and exhibit the same chemical and physical characteristics.

Therefore, option B. the liquid mercury is a pure substance as it is made of the same type of element.

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Related Questions

One piece of evidence that supports the Theory of Plate Tectonics is the discovery of what in both South America and Africa?

a
The ancient atmosphere in both places was identical.
b
The rates of weathering of rock are similar.
c
Fossil remains of the same land-dwelling animal.
d
Plants on both continents have similar flowers.

Answers

Answer:

d

Plants on both continents have similar flowers.

Explanation:

Because it has the same feeding habits.

top 3 vitamins In broccoli

Answers

Answer:

Wdym?

Niacin, Zinc, and Phosphorous?

Explanation:

Small aquatic organisms, such as coral, are the producers of the ocean.

Answers

Answer:

True

Explanation:

Primary Producers: Primary producers in a coral reef ecosystem include plankton, sea weeds and sea grasses. All of these organisms are photosynthetic organisms that get their energy from the sun.

Answer:

False

Explanation:

the Coral is not a producer, but rather a secondary consumer, in order to be a producer of an organism must be able to carry out photosynthesis.

Define the following terms in your own words.

Cell:

Microbiome:

Bacteria:

Infection:

Answers

Answer:

Cell: the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.

Microbiome: a community of microorganisms (such as bacteria, fungi, and viruses) that inhabit a particular environment and especially the collection of microorganisms living in or on the human body

Bacteria: a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.

Infection: the process of infecting or the state of being infected.

Explanation:

MARKING PEOPLE AS BRAINLIST PLEASE HELP

1.The third phase of mitosis is what

A: Prophase

B: Telophase

C: Anaphase




2.The fourth stage of mitosis is
A:Cytokinesis

B:Telophase

C:Prophase

Answers

Answer:

1. c

2.b

Explanation:

im pretty sure that is correct

1. C, Anaphase

Anaphase is a stage during eukaryotic cell division where the chromosomes are segregated to opposite poles of the cell.

2. B, Telophase

Telophase is the final stage in cell division where the nuclear envelopes reform around the new nuclei in each half of the dividing cell.

a
.
1, -10, 100, -1000, 10000
Explicit Formula: g. =
b. 10.2. 2.2. -5.8, 13.8, -21.8
Explicit Formula: a.
-
n

Answers

Answer:

3.8492

Explanation:

Describe the famous experiment related to gravity that Galileo may have preformed. Include the results. Also, state whether the results support the law of gravity. Explain your answer.

Please help me please and thank you Id appreciate it very much.

Answers

Galileo preformed a famous experiment where he used a ball rolling on a ramp (inclined plane) to study the motion of objects under the influence of gravity. The ramp allowed him to make more precise measurements because the ball moved more slowly along the ramp than if it were simply dropped. Galileo discovered through this experiment that the objects fell with the same acceleration, proving his prediction true, while at the same time disproving Aristotle's theory of gravity (which states that objects fall at speed proportional to their mass). Galileo's conclusion from this thought experiment was that no force is needed to keep an object moving with constant velocity. Newton took this as his first law of motion. One result of the experiment surprised Galileo, and one surprises us. Galileo found that the heavy ball hit the ground first, but only by a little bit. Except for a small difference caused by air resistance, both balls reached nearly the same speed. And that surprised him.

According to history, Galileo’s experiment on falling bodies largely contributed to Isaac Newton’s Law of Gravity. In Galileo’s experiment, he is said to have dropped balls from the Leaning Tower of Pisa. The balls were made of the same material but had different masses. Galileo set out to prove that the time it took for these objects to reach the ground would be the same. Galileo proved that objects reached the ground at the same time,

Answer:

Galileo threw two balls from a tower's summit. They were both the same size and shape, yet one weighed 50 grams and the other weighed 500 grams. As a result, the two balls collided at precisely the same time. This finding backs up Newton's law of gravitation, which states that things with more mass will be subjected to a larger gravitational force. Because the 500-g ball has higher inertia, it takes more force to accelerate it. That force is provided by the stronger gravitational pull, and the two balls descend at the same rate.

Explanation:

did myself

Which of these cannot be placed in a respirometer?
Insects
Humans
Germinating seeds

Answers

Answer:

the awnser is germinating seeds.

i got this awnser correct on my test :)

Living things pass hereditary information to new
organisms of the same type in the process of...
a. Reproduction
b.Respiration
c. Diffusion
d. Metabolism

Answers

Answer:

reproduction

Explanation:

Mitosis is a part of interphase in the cell cycle.

true
false

Answers

Answer:

False

Explanation:

Interphase is often included in discussions of mitosis, but interphase is technically not part of mitosis, but rather encompasses stages G1, S, and G2 of the cell cycle.

Mitosis is a part of interphase in the cell cycle. The given statement is False.

What is mitosis?

Mitosis is also termed as equational division. It is defined as a type of cell division where the chromosomes are replicated and are equally  distributed into two daughter cells.

Mitosis is not a part of interphase in the cell cycle. Interphase is the phase of the cell cycle that occurs between cell divisions, and it includes three sub-phases: G1, S, and G2. During interphase, the cell grows, replicates its DNA, and prepares for cell division.

During mitosis, the replicated chromosomes are separated into two sets and the cell divides into two daughter cells. Mitosis is a critical process for the growth, repair, and maintenance of multicellular organisms. Therefore, the given statement is False.

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could someone please help me

Answers

Answer:

photosynthic first I'm guessing you should search it up if u can

and anaerobic seems to mean no oxygen

I’m sorry I’m just slow and I can’t find the answer

Answers

Answer:

development then structures and finally common ancestry

Explanation:

this is some what an educated guess but I did this for my AP bio class last year and I'm pretty sure this is what it was also the wording fits

Answer:

I wrote the answers in order :) just need too put the words in the blank i did it for you have a good day!

Explanation:

during development similar species show similar structures these may include tails and gills, the presence of these structures provides evidence for common ancestry

Letter A represents?

A) substrate
B) enzyme
C) pH
D) active site

Letter C represents?

A) substrate
B) enzyme
C) pH
D) active site

Answers

A is the active site and C is the enzyme

a deer getting a drink of water because it feels thirsty is an example of a(n) _____ response to an ______ stimulus.


OA) voluntary; internal

OB) voluntary; external

OC) involuntary; internal

OD) involuntary; external​

Answers

Voluntary; internal

identify three environmental conditions that increase the rate of transpiration in plants and explain how they operate

Answers

Explanation:

Light

Plants transpire more rapidly in the light than in the dark. This is largely because light stimulates the opening of the stomata (mechanism). Light also speeds up transpiration by warming the leaf.

2. Temperature

Plants transpire more rapidly at higher temperatures because water evaporates more rapidly as the temperature rises. At 30°C, a leaf may transpire three times as fast as it does at 20°C.

3. Humidity

The rate of diffusion of any substance increases as the difference in concentration of the substances in the two regions increases.When the surrounding air is dry, diffusion of water out of the leaf goes on more rapidly.

4. Wind

When there is no breeze, the air surrounding a leaf becomes increasingly humid thus reducing the rate of transpiration. When a breeze is present, the humid air is carried away and replaced by drier air.

5. Soil water

A plant cannot continue to transpire rapidly if its water loss is not made up by replacement from the soil. When absorption of water by the roots fails to keep up with the rate of transpiration, loss of turgor occurs, and the stomata close. This immediately reduces the rate of transpiration (as well as of photosynthesis). If the loss of turgor extends to the rest of the leaf and stem, the plant wilts.

The volume of water lost in transpiration can be very high. It has been estimated that over the growing season, one acre of corn (maize) plants may transpire 400,000 gallons (1.5 million liters) of water. As liquid water, this would cover the field with a lake 15 inches (38 cm) deep. An acre of forest probably does even better.

Pls emt smart people pls answer this the best

Answers

Answer:

second one:when the thyroid produces too many hormones

Explanation:

I donno of its correct but I think its this

thanks fr points

have a gr8 day★:)

if you start near the north pole and head south to the equator what biomes would expect to come across

Answers

You would most likely come across a tundra or a taiga. Sorry if it’s wrong I literally just did a unit on this. :)

You need to probably cross tundra and taiga.

What are biomes?

The definition of a biome is "the world's principal communities, categorized according to the prevalent flora and distinguished by organism adaptations to that particular environment" (Campbell 1996).

It is impossible to overstate the significance of biomes. Over the course of life on Earth, biomes have evolved and shifted quite a bit. Human activities have significantly changed these communities more recently.

Particularly in Latin America, clearcutting for industrial use or cattle ranching, slash-and-burn farming, and other human activities have resulted in the destruction of tropical forests.

These events are a result of our rising demand for meat products. This damage has been happening quickly for years. Tropical forests that once covered much of the planet are already extinct.

Therefore, You need to probably cross tundra and taiga.

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Explain how humans are able to produce one type of hemoglobin as they develop in utero, then produce another to use after birth.

Answers

Answer:

Hi K. Try reading Lesson 1.02 in your OLS and the part about genes switching on and off during development. Or try asking me for help instead of strangers on the internet ;)

-Mrs. L

Explanation:

If the part of our skin we can see is made of dead cells,
why is it painful to get a tattoo?

Answers

Answer:

Well, it’s because tattoos have to get that ink deep enough that it won’t get washed away but not too deep so it remains visible — the ideal location ends up being right next to your skin’s pain receptors.

What are all the different types of Skin Cancer?

Answers

Answer:

There are 4 main types of skin cancer:

Basal cell carcinoma. Basal cells are the round cells found in the lower epidermis. ...

Squamous cell carcinoma. Most of the epidermis is made up of flat, scale-like cells called squamous cells. ...

Merkel cell cancer. ...

Melanoma.

Explanation:

Answer:

Hey gurl its me zoe

Explanation:

Old account wouldnt work

Brainliest?

More drops of pure water can fit on a penny than drops of soapy water. Why is this phenomenon true? A. Water has a neutral pH B. Soap interferes with the hydrogen bonds between different water molecules C. Soap interferes with the covalent bonds between different water molecules D. Water has a high specific heat

Answers

Answer:

b

Explanation:

what sphere does a sunflower belong to

Answers

Answer: Helianthus annuus.

Explanation:

What happens to the ribosome after translation

Answers

Explanation:

in translation there are 2 subunits that come together around a mRNA molocule forming a complete ribosome.

Why Photosynthesis is so important for a plant to survive?

Answers

Answer:

Photosynthesis is important because plants ant just survive on water,just like you and I cannot survive on just plain water. They need food, and as most plants don’t have mouths to get nutrients, they use chloroplasts in their cells to absorb sunlight and get the nutrients the need from degenrating the sunlight into different atoms and compounds. That is also why plants are always a certain color or two. Because sunlight is actually all of the colors, but when a plant absorbs these rays of sunlight, it will only take what it needs. So when you see a green grass blade, it’s because the plant only needed the other colors out of the sunlght and it is reflecting the green color.

Explanation:

Select the correct location on the image.
Which number gives the atomic mass of the element?
79
Au
gold
196.966569(4)

Answers

Answer:

the atomic mass would be on the bottom, the atomic number is in the top left

Explanation:

Answer:

196.966.....

Explanation:

This is the atomic mass, you are looking for the combined number of neutrons and protons

I is wrong because that is the atomic number (# of protons)

II is wrong, that is the atomic symbol

III is wrong that is the elements name

Which of the following refers to the small irregularities on a tool that happen every time a tool is used?
A.
slipped mark
B.
accidental characteristics
C.
rifling
D.
pitch
E.
class characteristics

Answers

Answer:

class characteristics

Explanation:

got it right on test

Answer:
The correct answer is accidental characteristics , also known as individual characteristics.
Explanation:

22) Give an example of the three different types of population dispersion that are not

from the text.

Answers

Answer: The dispersion can be defined as the development of spatial relationship between the members of the population in a habitat.

Explanation:

Uniform dispersion: This can be observed in case of plants which secrete toxins which kill the nearby plants hence, reduces the competition for resources.  For example, the Salvia leucophylla is responsible for secreting the toxins to kill the neighboring plants.

Random dispersion can be defined as the dispersion in which the plants that disperse their seed by wind but the seeds only germinate in the favorable environment.

Clumped dispersion can be defined as the dispersion in which the seeds are dropped into ground directly. Like in oak trees.

Easy: What is the similarity between different animals' choice of defense mechanism.Brainliest to whom can answer fastest shortest and closest to correct. Good luck!

Answers

Answer: similarities between plants and animals, many scientists Plants, as well as animals, perceive cues that are reliable ... modify their allocation to defense when information can plants and animals also shape the mechanisms of perception. response. Plant bodies are not as specialized as animal bodies

Explanation:

hpe it helps

Aquaporins are membrane proteins that span the entire membrane. An aquaporin protein must be able to interact with polar regions that are both extracellular and intracellular as well as polar water molecules moving through it’s core. Additionally, it must be able to interact with the nonpolar phospholipid tails. How is it possible that this protein (a collection of amino acids) can meet all of these requirements?

Answers

Answer:

- Proteins have the ability to change their conformation in order to establish multiple types of interactions  

- Proteins are macromolecules that are large enough to cross the membrane of biological cells regardless of different regional polarities and they may act as pores through which molecules diffuse.

- Proteins have well-defined domains with amino acid residues whose R-groups contain both polar and nonpolar portions and thereby they interact with surrounding molecules according to their requirements.

Explanation:

Porins are a type of protein that cross the cell membrane and thus act as pores through which molecules can diffuse. Aquaporins are porins that form pores across the cell membrane and allow the transport of water molecules between cells. These proteins consist of six transmembrane α-helices embedded in the cell membrane. Aquaporins have five loop regions that enter and exit the cell membrane, and two of these regions are hydrophobic.

Aquaporins are regarded as membrane proteins which span the entire

membrane and are able to perform the listed functions as a result of the

following:

Proteins are structures composed of amino acids which are able to change

in structure and shape thereby aiding different types of interactions  

Proteins are able to cross the membrane of biological cells because they

also act as pores through which materials pass through regardless of the

polarity of the molecules.

They also have polar and nonpolar amino acid properties which help to favor polarity of any type.

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How Is the Earth Changing? How would you answer this question now?

Answers

Answer: Climate change

Answer:

Humans—more specifically, the greenhouse gas (GHG) emissions we generate—are the leading cause of the earth's rapidly changing climate. Greenhouse gases play an important role in keeping the planet warm enough to inhabit. But the amount of these gases in our atmosphere has skyrocketed in recent decades. Global sea level rise is complex as well. To begin with, it has multiple causes, including the thermal expansion of the ocean as it warms, runoff of melt water from land-based ice sheets and mountain glaciers, and changes in water that’s stored on land. These factors combine to raise the height of our global ocean about 3.3 millimeters (0.13 inches) every year. That rate is accelerating by another 1 millimeter per year (0.04 inches per year) every decade or so.

Explanation:

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