Is density useful in identifying unknown substances?

Answers

Answer 1

Answer:

Yes

Explanation:

You can identify an unknown substance by measuring its density and comparing your result to a list of known densities.

Density = mass/volume

When you divide the mass by the volume and compare the density to a list of known densities.


Related Questions

Which method of heat transfer is energy that is teansferred by electromagnetic waves?​

Answers

Answer:

Radiation

Explanation:

Radiation is the transfer of heat by means of electromagnetic waves.

___________is the dropping of sediment by wind, water, ice, or gravity.

Answers

another. The movement of sediments by wind, water, ice, or gravity is called erosion.

So the answer is erosion.

What do all protists have in common? Check all that apply.

Protists are organisms composed of one or more cells.
Protists’ cells contain a nucleus.
Protists live in dry environments.
Protists produce their own food from the water.
Protists reproduce asexually or sexually.
Protists live in moist environments.

Answers

Answer: Protists are unicellular eucaryotes, which therefore have a nucleus. They live in moist environments and are not photosynthetic, although Euglenoides, which can be photosynthetic are sometimes classed as protists, sometimes as plants.

Explanation:

Answer:

Protists are organisms composed of one or more cells.

Protists’ cells contain a nucleus.

Protists reproduce aseually or seually.

Protists live in moist environments.

Explanation:

I got it right <3

I need this today please help me I’ll help you

Answers

Answer:

3

Explanation:

3 at a time

Answer:

3 bases.

iebdjndidndusoandusidjxjidjduxhdjdhdjdndudhdisndudhdkdndidj-it asked me to write 20 letters

When blood that is high in carbon dioxide exits the heart, it immediately enters which body system?

Answers

Answer:

The Circulatory System

Explanation:

When blood is rich in carbon dioxide it leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs. (All of which have to do with the circulatory system)

What is the genotype (genes) ratio for this probability outcome for the offspring?

Answers

White fur with purple Speckles sometimes I

How can you tell the stigma
from the stamens in a tubular insect-pollinated flower​

Answers

Explanation:

The stigma is the sticky knob at the top of the pistil. It is attached to the long, tubelike structure called the style. The style leads to the ovary that contains the female egg cells called ovules. The male parts are called stamens and usually surround the pistil.

the stamens are very different structures from the stigma. The stamen are very thin tubelike structures with little balls on the top of each, and there might be quite a few on a single flower. The stigma is the sticky top on the pistil,
which is a vase-like structure which contains the ovaries. A plant only has one pistil, and it is usually hidden from immediate view.

The right side of the heart collects oxygen-poor blood from the body and pumps it into the lungs, where it releases carbon dioxide and picks up oxygen.
True
False

Answers

Answer:

true

Explanation:

I believe The answer is true

Make a strand of DNA using the following:
5’--------3’

3’--------5’

Answers

Answer:

5 aaatttccccgcaaaa 3'

3' tttaaaggggcgtttt 5'

Explanation:

DIRECTIONS: Different organisms are listed in the first column. Determine the number of parent/s involved in the second column and on the third column identify the types of reproduction they undergo. Pls help

Answers

Answer:

There are two mode of reproduction in living organisms sexual and bisexual reproduction. In Asexual reproduction, fusion of gametes do not take place and have single parent and in sexual reproduction, two parents (male and female) are involved to give birth to new organism.

1. Amoeba : 1 parent ; Asexual reproduction

2. Caraboa: 2 parents; Sexual reproduction

3. Molds: 1 parent: Asexual reproduction and molds reproduce through spores.

4. Strawberry: 1 parent; Asexual reproduction by following vegetative reproduction

5. Yeast: 1 Parent; Asexual reproduction by following the process of budding.

Which would be the best example of migration?

Answers

Answer:

Choosing to move because of a new jobs

Explanation:

can someone please help? I’ll give brainliest

Answers

Answer:

C.)

Explanation:

Hope this helps you out!

Granite takes much longer to form than basalt. How will the size of the crystals in granite be different from the size of the crystals in basalt?

Answers

Answer:

The size of the crystals in granite will be different from the size of the crystals in basalt depending on how they are formed and how they are cooled which determines the nature of the crystals they produce. Granite takes a much longer time to form than basalt because granite takes a very long time to cool down since it is intrusive giving minerals to be well-formed and producing a bigger size of crystals with individual mineral grains that are can be seen without the need for bigger magnification. While basalt crystals are much smaller as the crystals form very quickly because the magma comes out of the earth and cools quickly giving rise to fine-grained minerals.

Explanation:

Granite and basalt are both igneous rocks.

Granite takes a longer time to cool as it hardens under the earth's surface causing the delay in cooling while basalt takes a shorter time to cool as it hardens above the earth's surface.

   

A allele is always represented by a capital by a letter

Answers

Answer:

A Dominant Allele is always represented as a Capital Letter. A Recessive Allele is represented as a Lower-Case Letter.

Answer:

Dominant Allele - Capital Letter

Recessive Allele - Small Letter

Explanation:

The graph shows the changing levels of hormones during menstruation and ovulation. What happens to hormone levels during ovulation, and why is this important?

Answers

Answer:

The estrogen level decreases during the ovulatory phase, and the progesterone level starts to increase. And it is important, because hormones that are being releazed stimulates the egg to move from the fallopian tube, which then leads to menstruation.

Explanation:

The ovulatory phase begins with a surge in luteinizing hormone and follicle-stimulating hormone levels. Luteinizing hormone stimulates egg release (ovulation), which usually occurs 16 to 32 hours after the surge begins.

Answer:

Hormone levels generally decrease.

Explanation:

True or false

- our phenotype is solely determined by genotype.


plz help me!!! :(

Answers

Answer:

true

Explanation:

true, bc pheno, determines on geno.

helppppppp imma get a F

Answers

Answer:

1. Hot water: Gas,  Ice cube: Solid

2. (I can't answer this one, I didn't do the activity)

3. Some parts of the world may never see naturally occurring solid water (ice), this probably due to a tropical/desert climate.

Individual cells do not need to maintain homeostasis. True
False

Answers

Answer:

False

Explanation:

False False False False

A woman with blood type O and a man with blood type AB have a child together. What are the possible blood types of this child ?

Answers

Answer:

O type blood (ii) and AB type Blood (IAIB) 50% of their children will have type A blood (IAi) and 50% will have type B blood (IBi)

Explanation:

the answer above is correct

Place the correct term in the sentence below. Through are formed. larger molecules ​

Answers

Answer:

Polymerization

Explanation:

for std.10 it can be combination reaction

but molecules are formed by reaction between non metal and non metal.

and product of combination reaction (between metal n nonmetal) is a compound

LEADING STRAND OF DNA: TTAGGC WHAT IS THE mRNA strand?
LEADING STRAND OF DNA: CGCCGTA WHAT IS THE mRNA strand?
LEADING STRAND OF DNA: AAACGT WHAT IS THE mRNA strand?

Answers

Answer:

DNA: 2 strands, Deoxyribose, Nucleus, A pairs with T

RNA: 1 strand, Ribose, Nucleus & Cytoplasm, A pairs with U

Explanation:

Direction: List down nine measuring tools on you answer sheet.

1. ____________
2.____________
3.____________
4.____________
5.____________
6.____________
7.____________
8.____________
9.____________
10.____________

Answers

Answer:

Calipers.

Micrometer.

Laser Measure.

Ruler.

Compass.

Square.

Measuring Tape.

Tailor's Measuring Tape.

Classify the statements as true or false

Fossils help scientists date rocks

Sometimes younger rock layers are found beneath older rock layers

The map of earth has changed over millions of years, but it is now set
No fossils from the Precambrian era have been found because there were no organisms at that time

Answers

Fossils help scientists date rocks: True

Sometimes younger rock layers are found beneath older rock layers: True

The map of earth has changed over millions of years, but it is now set: False

No fossils from the precambrian era have been found because there were no organisms that time: False

hope these are correct :)

Answer:

1. True 2. True 3. False 4. False

Explanation:

Fossils help scientist date rocks: Fossil presence is one of the most useful characteristics to date a rock, a fossil will set a specific geological age in which the organisms was present in the world, and vice-versa a new fossil can be dated by studying the age of the rock it was found.  Answer: True

 Sometimes younger rock layers are found beneath older rock layers: This phenomenon can be found in rock layers near the surface because process such as landslides that happen on the surface moves the surface rocks often resulting in older rocks appearing in the surface and younger rocks being buried by them.  Answer: True  

No fossils from the Precambrian era have been found because there were no organisms at that time: Although the number of organisms where very little organisms like algae (Stromatolites) were present in this era and fossils can be found.  Answer: False  

The map of Earth has changed over millions of years: but it is now set: The Earth crust is actually still moving, and will always move due to the tectonic plates and their movement caused by density and pressure, Nowadays The countries have moved from their once mapped location, because of this maps are needed to be updated by new geodesic measurements of the surface. Earth crust moves 2.5 centimeters per year.  Answer: False

What is one way to reduce the use of nonrenewable energy resources?

A building additional gas-powered factories in rural areas

B making more efficient gas-powered automobiles

C burning coal instead of wood in a fireplace

D mining for coal instead of drilling for oil

Answers

C that what I think it is

One way to reduce the use of nonrenewable energy resources is that make more efficient gas-powered automobiles. Thus, the correct option is B.

What is a Non-renewable energy resource?

A non-renewable energy resource may be defined as a source of natural resources that can not be readily replaced by natural means at a speed quick enough to keep up with consumption. Such types of resources take millions of years to be synthesized.

Burning of coal, mining of coal, building additional gas-powered factories in rural areas, utilization of nuclear energy, etc. are not the measures that are helpful in the reduction of usage of nonrenewable energy resources.

If we want to reduce the usage of non-renewable energy resources, it is required to be less dependent on such resources.

Therefore, one way to reduce the use of nonrenewable energy resources is that make more efficient gas-powered automobiles. Thus, the correct option is B.

To learn more about Non-renewable energy resources, refer to the link:

https://brainly.com/question/15782494

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HELP IM ON A TIMMRRR

Answers

The first one
Hope this helps!!!!

Answer:

the first one :))))))))

HELP DUE IN 10 MINS!
What type of solution is the cell in below?

A. hypertonic solution

B. hypotonic solution

C. isotonic solution

Answers

Answer:

isotonic solution

Explanation:

this means the inside and outside of the solute are the same

Answer:

i wuv you so much babes :)

Explanation:

Which of these kingdoms are NOT eukaryotic
a. Protista
b. Fungi
c.Animalia
d. Archaeabacteria

Answers

Answer:

Answer is Archaebacteria

Explanation:

If you breathed in a lot of chlorine at the pool, which of your cells would be affected? If an embryo were exposed to chlorine, which of his cells would be affected?​

Answers

Answer:

I HATE KEYONNN\

Explanation:

If a lot of chlorine is breathed in, then it would harm the lungs' cells, especially the cells of the airways, the pseudostratified epithelial cells. It harms the different organs of developing embryos as it depends on the mother.

What is breathing?

Breathing is the process of taking the oxygen inside the lungs from the atmosphere and releasing the carbon dioxide into the atmosphere. If a large amount of chlorine is taken, it will affect the cells in the airways.

Long-term inhalation of such gases causes lung problems such as acute lung disorder, asthma, pulmonary pneumonia, and so on. If such a condition arises, then it would be very difficult to provide proper oxygen to the body, and many other cellular activities would be affected.

In the case of developing embryos, it depends on the maternal supply. If the maternal blood is toxicated with chlorine, then it will supply the baby, and the developing baby organs will be affected. There are many disorders such as improper development of the brain, lungs, bones, etc. It will affect the embryo's cognitive capacity too.

Hence, a lot of chlorine affects the lungs the most when breathed.

To learn more about breathing, refer here.

https://brainly.com/question/3887418

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Which statement best explains the impact of favorable oceanic conditions on human behavior?

Boating activities decrease along shorelines.
Families move away from shorelines.
People spend less time playing at the beach.
Recreational water sports increase on beaches.

Answers

The impact of favorable oceanic conditions on human behavior are the Recreational water sports that increase on beaches.

What is the effect of favourable oceanic conditions?

The favorable oceanic conditions has a great impact on human behavior i.e. the increase  of Recreational water sports on beaches because people go to the places where the temperature is favourable and suitable.

So we can conclude that the impact of favorable oceanic conditions on human behavior are the Recreational water sports that increase on beaches.

Learn more about ocean here: https://brainly.com/question/1145641

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Answer:

Familys move away from shorelines

How does the nucleus, cell membrane, and ribosomes work together?

Answers

Answer:

Eukaryotic cells have a true nucleus, which means the cell's DNA is surrounded by a membrane. Therefore, the nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes, the cellular organelles responsible for protein synthesis.

OR

In the nucleolus, new ribosomal RNA combines with proteins to form the subunits of the ribosome. The newly made subunits are transported out through the nuclear pores to the cytoplasm, where they can do their job.

The nucleolus inside the nucleus produces ribosome components, which are synthesized just outside of the nucleus form ribosomes.

The spindle then sends mRNA towards the ribosomes, which is used to code for protein synthesis.

Other organs in the cell, including the mitochondria and lysosomes, are surrounded by lipid membranes that isolate them from other components in the cell. 

Learn more:

https://brainly.com/question/22663686?referrer=searchResults

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